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74816113 = 312413423
BaseRepresentation
bin1000111010110…
…01101001110001
312012210001102011
410131121221301
5123123103423
611231322521
71565632531
oct435315161
9165701364
1074816113
11392604a9
1221080441
13126669b8
149d174c1
15687cb0d
hex4759a71

74816113 has 4 divisors (see below), whose sum is σ = 77229568. Its totient is φ = 72402660.

The previous prime is 74816107. The next prime is 74816149. The reversal of 74816113 is 31161847.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-74816113 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31), and also a Moran number because the ratio is a prime number: 2413423 = 74816113 / (7 + 4 + 8 + 1 + 6 + 1 + 1 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74813113) 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, 1206681 + ... + 1206742.

It is an arithmetic number, because the mean of its divisors is an integer number (19307392).

Almost surely, 274816113 is an apocalyptic number.

It is an amenable number.

74816113 is a deficient number, since it is larger than the sum of its proper divisors (2413455).

74816113 is a wasteful number, since it uses less digits than its factorization.

74816113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2413454.

The product of its digits is 4032, while the sum is 31.

The square root of 74816113 is about 8649.6308013695. The cubic root of 74816113 is about 421.3713921356.

It can be divided in two parts, 748 and 16113, that added together give a palindrome (16861).

The spelling of 74816113 in words is "seventy-four million, eight hundred sixteen thousand, one hundred thirteen".

Divisors: 1 31 2413423 74816113