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74879986133 = 233787990583
BaseRepresentation
bin100010110111100110…
…0011110100111010101
321011021111220102100202
41011233030132213111
52211323234024013
654222133550245
75260411244321
oct1055714364725
9234244812322
1074879986133
1129835888967
12126191a5385
1370a4475c04
1438a4b96981
151e33c5c858
hex116f31e9d5

74879986133 has 8 divisors (see below), whose sum is σ = 80247412608. Its totient is φ = 69688540944.

The previous prime is 74879986073. The next prime is 74879986141. The reversal of 74879986133 is 33168997847.

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 74879986133 - 222 = 74875791829 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 74879986133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74879986163) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43994441 + ... + 43996142.

It is an arithmetic number, because the mean of its divisors is an integer number (10030926576).

Almost surely, 274879986133 is an apocalyptic number.

It is an amenable number.

74879986133 is a deficient number, since it is larger than the sum of its proper divisors (5367426475).

74879986133 is a wasteful number, since it uses less digits than its factorization.

74879986133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87990643.

The product of its digits is 54867456, while the sum is 65.

The spelling of 74879986133 in words is "seventy-four billion, eight hundred seventy-nine million, nine hundred eighty-six thousand, one hundred thirty-three".

Divisors: 1 23 37 851 87990583 2023783409 3255651571 74879986133