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157319908860 = 223510130198599
BaseRepresentation
bin1001001010000011111…
…1110100110111111100
3120001001220011102010010
42102200333310313330
510034142344040420
6200134411343220
714236351106262
oct2224077646774
9501056142103
10157319908860
116079aa95004
12265a6151b10
1311ab1c33c8a
1478859c4432
15415b53b4e0
hex24a0ff4dfc

157319908860 has 96 divisors (see below), whose sum is σ = 445056192000. Its totient is φ = 41518022400.

The previous prime is 157319908807. The next prime is 157319908861. The reversal of 157319908860 is 68809913751.

It is a self number, because there is not a number n which added to its sum of digits gives 157319908860.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157319908861) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18290841 + ... + 18299439.

It is an arithmetic number, because the mean of its divisors is an integer number (4636002000).

Almost surely, 2157319908860 is an apocalyptic number.

157319908860 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 157319908860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (222528096000).

157319908860 is an abundant number, since it is smaller than the sum of its proper divisors (287736283140).

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

157319908860 is a wasteful number, since it uses less digits than its factorization.

157319908860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11731 (or 11729 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 57.

The spelling of 157319908860 in words is "one hundred fifty-seven billion, three hundred nineteen million, nine hundred eight thousand, eight hundred sixty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 101 202 303 404 505 606 1010 1212 1515 2020 3019 3030 6038 6060 8599 9057 12076 15095 17198 18114 25797 30190 34396 36228 42995 45285 51594 60380 85990 90570 103188 128985 171980 181140 257970 304919 515940 609838 868499 914757 1219676 1524595 1736998 1829514 2605497 3049190 3473996 3659028 4342495 4573785 5210994 6098380 8684990 9147570 10421988 13027485 17369980 18295140 25960381 26054970 51920762 52109940 77881143 103841524 129801905 155762286 259603810 311524572 389405715 519207620 778811430 1557622860 2621998481 5243996962 7865995443 10487993924 13109992405 15731990886 26219984810 31463981772 39329977215 52439969620 78659954430 157319908860