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40981875 = 354111987
BaseRepresentation
bin1001110001010…
…1010101110011
32212010002120020
42130111111303
540442410000
64022214523
71005224454
oct234252563
985102506
1040981875
1121151320
1211884443
13864b73c
14562b12b
1538e7ba0
hex2715573

40981875 has 40 divisors (see below), whose sum is σ = 74526144. Its totient is φ = 19860000.

The previous prime is 40981819. The next prime is 40981877. The reversal of 40981875 is 57818904.

It is not a de Polignac number, because 40981875 - 212 = 40977779 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40981877) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 19632 + ... + 21618.

Almost surely, 240981875 is an apocalyptic number.

40981875 is a deficient number, since it is larger than the sum of its proper divisors (33544269).

40981875 is a wasteful number, since it uses less digits than its factorization.

40981875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2021 (or 2006 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 42.

The square root of 40981875 is about 6401.7087562619. The cubic root of 40981875 is about 344.7709044046.

The spelling of 40981875 in words is "forty million, nine hundred eighty-one thousand, eight hundred seventy-five".

Divisors: 1 3 5 11 15 25 33 55 75 125 165 275 375 625 825 1375 1875 1987 4125 5961 6875 9935 20625 21857 29805 49675 65571 109285 149025 248375 327855 546425 745125 1241875 1639275 2732125 3725625 8196375 13660625 40981875