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40678975 = 523152489
BaseRepresentation
bin1001101100101…
…1011000111111
32211112201001201
42123023120333
540403211400
64011520331
71002523411
oct233133077
984481051
1040678975
1120a64797
12117590a7
1385738cc
14558c9b1
15388806a
hex26cb63f

40678975 has 12 divisors (see below), whose sum is σ = 52070080. Its totient is φ = 31492800.

The previous prime is 40678961. The next prime is 40679033. The reversal of 40678975 is 57987604.

It is a happy number.

It is not a de Polignac number, because 40678975 - 225 = 7124543 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25470 + ... + 27019.

Almost surely, 240678975 is an apocalyptic number.

40678975 is a deficient number, since it is larger than the sum of its proper divisors (11391105).

40678975 is a wasteful number, since it uses less digits than its factorization.

40678975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52530 (or 52525 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 46.

The square root of 40678975 is about 6378.0071338938. The cubic root of 40678975 is about 343.9193941976.

The spelling of 40678975 in words is "forty million, six hundred seventy-eight thousand, nine hundred seventy-five".

Divisors: 1 5 25 31 155 775 52489 262445 1312225 1627159 8135795 40678975