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31077076 = 2212016469
BaseRepresentation
bin111011010001…
…1001011010100
32011110212201211
41312203023110
530423431301
63030031204
7525102502
oct166431324
964425654
1031077076
11165a6738
12a4a8504
136591304
1441ad672
152add051
hex1da32d4

31077076 has 12 divisors (see below), whose sum is σ = 54438580. Its totient is φ = 15523200.

The previous prime is 31077043. The next prime is 31077107. The reversal of 31077076 is 67077013.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 562500 + 30514576 = 750^2 + 5524^2 .

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1570 + ... + 8038.

Almost surely, 231077076 is an apocalyptic number.

It is an amenable number.

31077076 is a deficient number, since it is larger than the sum of its proper divisors (23361504).

31077076 is a wasteful number, since it uses less digits than its factorization.

31077076 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7674 (or 7672 counting only the distinct ones).

The product of its (nonzero) digits is 6174, while the sum is 31.

The square root of 31077076 is about 5574.6816949490. The cubic root of 31077076 is about 314.3981992874.

The spelling of 31077076 in words is "thirty-one million, seventy-seven thousand, seventy-six".

Divisors: 1 2 4 1201 2402 4804 6469 12938 25876 7769269 15538538 31077076