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121669060971 = 31492243121351
BaseRepresentation
bin111000101010000001…
…0101000100101101011
3102122001022210200201110
41301110002220211223
53443134234422341
6131521034121403
711535033645243
oct1612402504553
9378038720643
10121669060971
1147666016357
121b6b6880263
13b61cc20403
145c62c96b23
153271797216
hex1c540a896b

121669060971 has 16 divisors (see below), whose sum is σ = 163388332800. Its totient is φ = 80531743200.

The previous prime is 121669060967. The next prime is 121669060973. The reversal of 121669060971 is 179060966121.

It is a happy number.

It is not a de Polignac number, because 121669060971 - 22 = 121669060967 is a prime.

It is a super-3 number, since 3×1216690609713 (a number of 34 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 121669060971.

It is not an unprimeable number, because it can be changed into a prime (121669060973) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 941946 + ... + 1063296.

It is an arithmetic number, because the mean of its divisors is an integer number (10211770800).

Almost surely, 2121669060971 is an apocalyptic number.

121669060971 is a deficient number, since it is larger than the sum of its proper divisors (41719271829).

121669060971 is a wasteful number, since it uses less digits than its factorization.

121669060971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123746.

The product of its (nonzero) digits is 244944, while the sum is 48.

The spelling of 121669060971 in words is "one hundred twenty-one billion, six hundred sixty-nine million, sixty thousand, nine hundred seventy-one".

Divisors: 1 3 149 447 2243 6729 121351 334207 364053 1002621 18081299 54243897 272190293 816570879 40556353657 121669060971