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204750149240 = 23571356250041
BaseRepresentation
bin1011111010110000001…
…1110101011001111000
3201120111101112021020202
42332230003311121320
511323312014233430
6234021054141332
720535620360420
oct2765403653170
9646441467222
10204750149240
117991a13767a
12338224b1848
131640048b280
149ca4d05480
1554d54c5d45
hex2fac0f5678

204750149240 has 64 divisors (see below), whose sum is σ = 567000423360. Its totient is φ = 64800046080.

The previous prime is 204750149221. The next prime is 204750149251. The reversal of 204750149240 is 42941057402.

It is a super-2 number, since 2×2047501492402 (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 204750149194 and 204750149203.

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, 28121381 + ... + 28128660.

It is an arithmetic number, because the mean of its divisors is an integer number (8859381615).

Almost surely, 2204750149240 is an apocalyptic number.

204750149240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204750149240 is an abundant number, since it is smaller than the sum of its proper divisors (362250274120).

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

204750149240 is a wasteful number, since it uses less digits than its factorization.

204750149240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56250072 (or 56250068 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 38.

The spelling of 204750149240 in words is "two hundred four billion, seven hundred fifty million, one hundred forty-nine thousand, two hundred forty".

Divisors: 1 2 4 5 7 8 10 13 14 20 26 28 35 40 52 56 65 70 91 104 130 140 182 260 280 364 455 520 728 910 1820 3640 56250041 112500082 225000164 281250205 393750287 450000328 562500410 731250533 787500574 1125000820 1462501066 1575001148 1968751435 2250001640 2925002132 3150002296 3656252665 3937502870 5118753731 5850004264 7312505330 7875005740 10237507462 14625010660 15750011480 20475014924 25593768655 29250021320 40950029848 51187537310 102375074620 204750149240