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157884144 = 243112313001
BaseRepresentation
bin10010110100100…
…01111011110000
3102000002100022220
421122101323300
5310404243034
623400001040
73624664425
oct1132217360
9360070286
10157884144
1181137770
1244a60180
132692c692
1416d7bd4c
15dcda749
hex9691ef0

157884144 has 80 divisors (see below), whose sum is σ = 464327424. Its totient is φ = 45760000.

The previous prime is 157884137. The next prime is 157884169. The reversal of 157884144 is 441488751.

157884144 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1578841442 = 49854805853225472, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 157884096 and 157884105.

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, 5644 + ... + 18644.

Almost surely, 2157884144 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 157884144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (232163712).

157884144 is an abundant number, since it is smaller than the sum of its proper divisors (306443280).

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

157884144 is a wasteful number, since it uses less digits than its factorization.

157884144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13046 (or 13040 counting only the distinct ones).

The product of its digits is 143360, while the sum is 42.

The square root of 157884144 is about 12565.1957406162. The cubic root of 157884144 is about 540.4798478259.

The spelling of 157884144 in words is "one hundred fifty-seven million, eight hundred eighty-four thousand, one hundred forty-four".

Divisors: 1 2 3 4 6 8 11 12 16 22 23 24 33 44 46 48 66 69 88 92 132 138 176 184 253 264 276 368 506 528 552 759 1012 1104 1518 2024 3036 4048 6072 12144 13001 26002 39003 52004 78006 104008 143011 156012 208016 286022 299023 312024 429033 572044 598046 624048 858066 897069 1144088 1196092 1716132 1794138 2288176 2392184 3289253 3432264 3588276 4784368 6578506 6864528 7176552 9867759 13157012 14353104 19735518 26314024 39471036 52628048 78942072 157884144