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72494001 = 3317433673
BaseRepresentation
bin1000101001000…
…10101110110001
312001102002002000
410110202232301
5122024302001
611105444213
71540121526
oct424425661
9161362060
1072494001
1137a148a8
1220340669
1312032a78
1498b114d
15656ea86
hex4522bb1

72494001 has 32 divisors (see below), whose sum is σ = 116392320. Its totient is φ = 44416512.

The previous prime is 72493991. The next prime is 72494003. The reversal of 72494001 is 10049427.

It is a happy number.

It is not a de Polignac number, because 72494001 - 25 = 72493969 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (72494003) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17901 + ... + 21573.

It is an arithmetic number, because the mean of its divisors is an integer number (3637260).

Almost surely, 272494001 is an apocalyptic number.

It is an amenable number.

72494001 is a deficient number, since it is larger than the sum of its proper divisors (43898319).

72494001 is a wasteful number, since it uses less digits than its factorization.

72494001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3742 (or 3736 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 72494001 is about 8514.3409022660. The cubic root of 72494001 is about 416.9660445412.

The spelling of 72494001 in words is "seventy-two million, four hundred ninety-four thousand, one".

Divisors: 1 3 9 17 27 43 51 129 153 387 459 731 1161 2193 3673 6579 11019 19737 33057 62441 99171 157939 187323 473817 561969 1421451 1685907 2684963 4264353 8054889 24164667 72494001