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42731795 = 5173116217
BaseRepresentation
bin1010001100000…
…0100100010011
32222102000000002
42203000210103
541414404140
64123520215
71026133331
oct243004423
988360002
1042731795
1122137037
121238906b
138b120b2
145964b51
153b41415
hex28c0913

42731795 has 16 divisors (see below), whose sum is σ = 56049408. Its totient is φ = 31134720.

The previous prime is 42731783. The next prime is 42731813. The reversal of 42731795 is 59713724.

It is not a de Polignac number, because 42731795 - 214 = 42715411 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5474 + ... + 10743.

It is an arithmetic number, because the mean of its divisors is an integer number (3503088).

Almost surely, 242731795 is an apocalyptic number.

42731795 is a deficient number, since it is larger than the sum of its proper divisors (13317613).

42731795 is a wasteful number, since it uses less digits than its factorization.

42731795 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16270.

The product of its digits is 52920, while the sum is 38.

The square root of 42731795 is about 6536.9560959211. The cubic root of 42731795 is about 349.6098918797.

The spelling of 42731795 in words is "forty-two million, seven hundred thirty-one thousand, seven hundred ninety-five".

Divisors: 1 5 17 31 85 155 527 2635 16217 81085 275689 502727 1378445 2513635 8546359 42731795