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208101342720 = 2935255710597
BaseRepresentation
bin1100000111001111001…
…1100111111000000000
3201220010221101112110210
43001303303213320000
511402142420431340
6235333405554120
721014642140665
oct3016363477000
9656127345423
10208101342720
1180289867967
12343b8875940
1316815855cab
14a102009a6c
15562e7dc180
hex3073ce7e00

208101342720 has 160 divisors (see below), whose sum is σ = 665596961568. Its totient is φ = 55466754048.

The previous prime is 208101342703. The next prime is 208101342749. The reversal of 208101342720 is 27243101802.

It is a tau number, because it is divible by the number of its divisors (160).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19632462 + ... + 19643058.

Almost surely, 2208101342720 is an apocalyptic number.

208101342720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 208101342720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (332798480784).

208101342720 is an abundant number, since it is smaller than the sum of its proper divisors (457495618848).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

208101342720 is a wasteful number, since it uses less digits than its factorization.

208101342720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13180 (or 13164 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 30.

The spelling of 208101342720 in words is "two hundred eight billion, one hundred one million, three hundred forty-two thousand, seven hundred twenty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 48 60 64 80 96 120 128 160 192 240 256 320 384 480 512 640 768 960 1280 1536 1920 2557 2560 3840 5114 7671 7680 10228 10597 12785 15342 20456 21194 25570 30684 31791 38355 40912 42388 51140 52985 61368 63582 76710 81824 84776 102280 105970 122736 127164 153420 158955 163648 169552 204560 211940 245472 254328 306840 317910 327296 339104 409120 423880 490944 508656 613680 635820 654592 678208 818240 847760 981888 1017312 1227360 1271640 1309184 1356416 1636480 1695520 1963776 2034624 2454720 2543280 2712832 3272960 3391040 3927552 4069248 4909440 5086560 5425664 6545920 6782080 8138496 9818880 10173120 13564160 16276992 19637760 20346240 27096529 27128320 40692480 54193058 81289587 81384960 108386116 135482645 162579174 216772232 270965290 325158348 406447935 433544464 541930580 650316696 812895870 867088928 1083861160 1300633392 1625791740 1734177856 2167722320 2601266784 3251583480 3468355712 4335444640 5202533568 6503166960 6936711424 8670889280 10405067136 13006333920 13873422848 17341778560 20810134272 26012667840 34683557120 41620268544 52025335680 69367114240 104050671360 208101342720