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74553013 = 431733791
BaseRepresentation
bin1000111000110…
…01011010110101
312012021200111201
410130121122311
5123041144023
611221532501
71563455503
oct434313265
9165250451
1074553013
11390a0867
1220b74131
13125a4012
149c89673
156829bad
hex47196b5

74553013 has 4 divisors (see below), whose sum is σ = 76286848. Its totient is φ = 72819180.

The previous prime is 74552981. The next prime is 74553029. The reversal of 74553013 is 31035547.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 31035547 = 54157367.

It is a cyclic number.

It is not a de Polignac number, because 74553013 - 25 = 74552981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74554013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 866853 + ... + 866938.

It is an arithmetic number, because the mean of its divisors is an integer number (19071712).

Almost surely, 274553013 is an apocalyptic number.

It is an amenable number.

74553013 is a deficient number, since it is larger than the sum of its proper divisors (1733835).

74553013 is a wasteful number, since it uses less digits than its factorization.

74553013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1733834.

The product of its (nonzero) digits is 6300, while the sum is 28.

The square root of 74553013 is about 8634.4086653343. The cubic root of 74553013 is about 420.8768773512.

The spelling of 74553013 in words is "seventy-four million, five hundred fifty-three thousand, thirteen".

Divisors: 1 43 1733791 74553013