Search a number
-
+
157872036 = 22371879429
BaseRepresentation
bin10010110100011…
…10111110100100
3102000001201201110
421122032332210
5310403401121
623355425020
73624614220
oct1132167644
9360051643
10157872036
1181129663
1244a55170
132692700a
1416d77780
15dcd6d76
hex968efa4

157872036 has 24 divisors (see below), whose sum is σ = 420992320. Its totient is φ = 45106272.

The previous prime is 157871999. The next prime is 157872037. The reversal of 157872036 is 630278751.

It is a junction number, because it is equal to n+sod(n) for n = 157871985 and 157872003.

It is not an unprimeable number, because it can be changed into a prime (157872037) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 939631 + ... + 939798.

Almost surely, 2157872036 is an apocalyptic number.

It is an amenable number.

157872036 is an abundant number, since it is smaller than the sum of its proper divisors (263120284).

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

157872036 is a wasteful number, since it uses less digits than its factorization.

157872036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1879443 (or 1879441 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 39.

The square root of 157872036 is about 12564.7139243200. The cubic root of 157872036 is about 540.4660311603.

The spelling of 157872036 in words is "one hundred fifty-seven million, eight hundred seventy-two thousand, thirty-six".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 1879429 3758858 5638287 7517716 11276574 13156003 22553148 26312006 39468009 52624012 78936018 157872036