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151992992 = 254749781
BaseRepresentation
bin10010000111100…
…11101010100000
3101121000001012002
421003303222200
5302402233432
623025423132
73523630154
oct1103635240
9347001162
10151992992
1178883648
1242a9aaa8
13256490a8
1416287064
15d524e62
hex90f3aa0

151992992 has 12 divisors (see below), whose sum is σ = 299236266. Its totient is φ = 75996480.

The previous prime is 151992991. The next prime is 151993007. The reversal of 151992992 is 299299151.

It can be written as a sum of positive squares in only one way, i.e., 151683856 + 309136 = 12316^2 + 556^2 .

It is a super-2 number, since 2×1519929922 = 46203739234224128, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (151992991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2374859 + ... + 2374922.

Almost surely, 2151992992 is an apocalyptic number.

It is an amenable number.

151992992 is a deficient number, since it is larger than the sum of its proper divisors (147243274).

151992992 is an equidigital number, since it uses as much as digits as its factorization.

151992992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4749791 (or 4749783 counting only the distinct ones).

The product of its digits is 131220, while the sum is 47.

The square root of 151992992 is about 12328.5437907321. The cubic root of 151992992 is about 533.6721277943.

The spelling of 151992992 in words is "one hundred fifty-one million, nine hundred ninety-two thousand, nine hundred ninety-two".

Divisors: 1 2 4 8 16 32 4749781 9499562 18999124 37998248 75996496 151992992