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31074542 = 220037757
BaseRepresentation
bin111011010001…
…0100011101110
32011110202020222
41312202203232
530423341132
63030011342
7525062222
oct166424356
964422228
1031074542
11165a4844
12a4a6b52
136590105
1441ac782
152adc412
hex1da28ee

31074542 has 8 divisors (see below), whose sum is σ = 46641096. Its totient is φ = 15527512.

The previous prime is 31074517. The next prime is 31074551. The reversal of 31074542 is 24547013.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 128 + ... + 7884.

It is an arithmetic number, because the mean of its divisors is an integer number (5830137).

Almost surely, 231074542 is an apocalyptic number.

31074542 is a deficient number, since it is larger than the sum of its proper divisors (15566554).

31074542 is a wasteful number, since it uses less digits than its factorization.

31074542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9762.

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 31074542 is about 5574.4544127654. The cubic root of 31074542 is about 314.3896537956.

The spelling of 31074542 in words is "thirty-one million, seventy-four thousand, five hundred forty-two".

Divisors: 1 2 2003 4006 7757 15514 15537271 31074542