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156145828 = 22241161977
BaseRepresentation
bin10010100111010…
…01100010100100
3101212211000210211
421103221202210
5304433131303
623254425204
73604134436
oct1123514244
9355730724
10156145828
118015a743
1244362204
13264713a7
1416a48656
15da9566d
hex94e98a4

156145828 has 12 divisors (see below), whose sum is σ = 274390732. Its totient is φ = 77748480.

The previous prime is 156145823. The next prime is 156145877. The reversal of 156145828 is 828541651.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 97653924 + 58491904 = 9882^2 + 7648^2 .

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (156145823) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80025 + ... + 81952.

Almost surely, 2156145828 is an apocalyptic number.

It is an amenable number.

156145828 is a deficient number, since it is larger than the sum of its proper divisors (118244904).

156145828 is a wasteful number, since it uses less digits than its factorization.

156145828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162222 (or 162220 counting only the distinct ones).

The product of its digits is 76800, while the sum is 40.

The square root of 156145828 is about 12495.8324252528. The cubic root of 156145828 is about 538.4889489531.

The spelling of 156145828 in words is "one hundred fifty-six million, one hundred forty-five thousand, eight hundred twenty-eight".

Divisors: 1 2 4 241 482 964 161977 323954 647908 39036457 78072914 156145828