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74565013 = 3110312333
BaseRepresentation
bin1000111000111…
…00010110010101
312012022021222011
410130130112111
5123042040023
611222104221
71563535465
oct434342625
9165267864
1074565013
11390a9886
1220b7b071
13125a9613
149c8dba5
15682d50d
hex471c595

74565013 has 8 divisors (see below), whose sum is σ = 77078016. Its totient is φ = 72058800.

The previous prime is 74564993. The next prime is 74565041. The reversal of 74565013 is 31056547.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 74565013 - 213 = 74556821 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74565083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30795 + ... + 33127.

It is an arithmetic number, because the mean of its divisors is an integer number (9634752).

Almost surely, 274565013 is an apocalyptic number.

It is an amenable number.

74565013 is a deficient number, since it is larger than the sum of its proper divisors (2513003).

74565013 is a wasteful number, since it uses less digits than its factorization.

74565013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3395.

The product of its (nonzero) digits is 12600, while the sum is 31.

The square root of 74565013 is about 8635.1035315160. The cubic root of 74565013 is about 420.8994574875.

The spelling of 74565013 in words is "seventy-four million, five hundred sixty-five thousand, thirteen".

Divisors: 1 31 1031 2333 31961 72323 2405323 74565013