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31074192 = 243423977
BaseRepresentation
bin111011010001…
…0011110010000
32011110201210000
41312202132100
530423333232
63030010000
7525061212
oct166423620
964421700
1031074192
11165a4556
12a4a6900
13658cbc6
1441ac5b2
152adc27c
hex1da2790

31074192 has 50 divisors (see below), whose sum is σ = 89941478. Its totient is φ = 10357632.

The previous prime is 31074163. The next prime is 31074217. The reversal of 31074192 is 29147013.

It can be written as a sum of positive squares in only one way, i.e., 25765776 + 5308416 = 5076^2 + 2304^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 10693 + ... + 13284.

Almost surely, 231074192 is an apocalyptic number.

It is an amenable number.

31074192 is an abundant number, since it is smaller than the sum of its proper divisors (58867286).

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

31074192 is a wasteful number, since it uses less digits than its factorization.

31074192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23997 (or 23982 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 31074192 is about 5574.4230194703. The cubic root of 31074192 is about 314.3884734426.

The spelling of 31074192 in words is "thirty-one million, seventy-four thousand, one hundred ninety-two".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 27 36 48 54 72 81 108 144 162 216 324 432 648 1296 23977 47954 71931 95908 143862 191816 215793 287724 383632 431586 575448 647379 863172 1150896 1294758 1726344 1942137 2589516 3452688 3884274 5179032 7768548 10358064 15537096 31074192