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40370057 = 7132711637
BaseRepresentation
bin1001100111111…
…1111110001001
32210222000022022
42121333332021
540313320212
64001134225
71000065650
oct231777611
983860268
1040370057
1120873692
121162a375
138496110
14550c197
153826772
hex267ff89

40370057 has 16 divisors (see below), whose sum is σ = 49900032. Its totient is φ = 31803840.

The previous prime is 40370051. The next prime is 40370089. The reversal of 40370057 is 75007304.

It is a cyclic number.

It is not a de Polignac number, because 40370057 - 26 = 40369993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40370051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23843 + ... + 25479.

It is an arithmetic number, because the mean of its divisors is an integer number (3118752).

Almost surely, 240370057 is an apocalyptic number.

It is an amenable number.

40370057 is a deficient number, since it is larger than the sum of its proper divisors (9529975).

40370057 is a wasteful number, since it uses less digits than its factorization.

40370057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1928.

The product of its (nonzero) digits is 2940, while the sum is 26.

The square root of 40370057 is about 6353.7435421962. The cubic root of 40370057 is about 343.0466012326.

The spelling of 40370057 in words is "forty million, three hundred seventy thousand, fifty-seven".

Divisors: 1 7 13 91 271 1637 1897 3523 11459 21281 24661 148967 443627 3105389 5767151 40370057