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31948044 = 22319140123
BaseRepresentation
bin111100111011…
…1110100001100
32020010010110220
41321313310030
531134314134
63100431340
7535360662
oct171676414
966103426
1031948044
1117041047
12a848550
13680788b
144358c32
152c11149
hex1e77d0c

31948044 has 24 divisors (see below), whose sum is σ = 78469440. Its totient is φ = 10088784.

The previous prime is 31948043. The next prime is 31948051. The reversal of 31948044 is 44084913.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 31947996 and 31948014.

It is not an unprimeable number, because it can be changed into a prime (31948043) 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, 69834 + ... + 70289.

It is an arithmetic number, because the mean of its divisors is an integer number (3269560).

Almost surely, 231948044 is an apocalyptic number.

It is an amenable number.

31948044 is an abundant number, since it is smaller than the sum of its proper divisors (46521396).

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

31948044 is a wasteful number, since it uses less digits than its factorization.

31948044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140149 (or 140147 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 31948044 is about 5652.2600789419. The cubic root of 31948044 is about 317.3082943821.

The spelling of 31948044 in words is "thirty-one million, nine hundred forty-eight thousand, forty-four".

Divisors: 1 2 3 4 6 12 19 38 57 76 114 228 140123 280246 420369 560492 840738 1681476 2662337 5324674 7987011 10649348 15974022 31948044