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121674472121 = 53137142711743
BaseRepresentation
bin111000101010001011…
…1010001101010111001
3102122001200222121102102
41301110113101222321
53443142131101441
6131521350113145
711535130643216
oct1612427215271
9378050877372
10121674472121
1147669081884
121b6b864b7b5
13b621096387
145c638a4b0d
153271eb569b
hex1c545d1ab9

121674472121 has 16 divisors (see below), whose sum is σ = 124973259264. Its totient is φ = 118414218624.

The previous prime is 121674472081. The next prime is 121674472207. The reversal of 121674472121 is 121274476121.

It is a cyclic number.

It is not a de Polignac number, because 121674472121 - 230 = 120600730297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121674472321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10355576 + ... + 10367318.

It is an arithmetic number, because the mean of its divisors is an integer number (7810828704).

Almost surely, 2121674472121 is an apocalyptic number.

It is an amenable number.

121674472121 is a deficient number, since it is larger than the sum of its proper divisors (3298787143).

121674472121 is a wasteful number, since it uses less digits than its factorization.

121674472121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13360.

The product of its digits is 37632, while the sum is 38.

The spelling of 121674472121 in words is "one hundred twenty-one billion, six hundred seventy-four million, four hundred seventy-two thousand, one hundred twenty-one".

Divisors: 1 53 137 1427 7261 11743 75631 195499 622379 1608791 10361447 16757261 85265923 888134833 2295744757 121674472121