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139869200 = 24521767307
BaseRepresentation
bin10000101011000…
…11110000010000
3100202012002110202
420111203300100
5241301303300
621513514332
73315603632
oct1025436020
9322162422
10139869200
1171a52889
123aa129a8
1322c92953
141480ca52
15c42cad5
hex8563c10

139869200 has 120 divisors (see below), whose sum is σ = 362289312. Its totient is φ = 51701760.

The previous prime is 139869199. The next prime is 139869271. The reversal of 139869200 is 2968931.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 455447 + ... + 455753.

Almost surely, 2139869200 is an apocalyptic number.

139869200 is a gapful number since it is divisible by the number (10) 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 139869200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (181144656).

139869200 is an abundant number, since it is smaller than the sum of its proper divisors (222420112).

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

139869200 is a wasteful number, since it uses less digits than its factorization.

139869200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 409 (or 398 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 38.

The square root of 139869200 is about 11826.6309657484. The cubic root of 139869200 is about 519.0876506961.

The spelling of 139869200 in words is "one hundred thirty-nine million, eight hundred sixty-nine thousand, two hundred".

Divisors: 1 2 4 5 8 10 16 17 20 25 34 40 50 67 68 80 85 100 134 136 170 200 268 272 307 335 340 400 425 536 614 670 680 850 1072 1139 1228 1340 1360 1535 1675 1700 2278 2456 2680 3070 3350 3400 4556 4912 5219 5360 5695 6140 6700 6800 7675 9112 10438 11390 12280 13400 15350 18224 20569 20876 22780 24560 26095 26800 28475 30700 41138 41752 45560 52190 56950 61400 82276 83504 91120 102845 104380 113900 122800 130475 164552 205690 208760 227800 260950 329104 349673 411380 417520 455600 514225 521900 699346 822760 1028450 1043800 1398692 1645520 1748365 2056900 2087600 2797384 3496730 4113800 5594768 6993460 8227600 8741825 13986920 17483650 27973840 34967300 69934600 139869200