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121629081485 = 5197265946439
BaseRepresentation
bin111000101000110101…
…0000111111110001101
3102121221112120112011202
41301101222013332031
53443044021101420
6131513045155245
711534040064052
oct1612152077615
9377845515152
10121629081485
114764549a15a
121b6a53bbb25
13b614863002
145c5b84b029
15326ceeb575
hex1c51a87f8d

121629081485 has 16 divisors (see below), whose sum is σ = 146754115200. Its totient is φ = 96770847936.

The previous prime is 121629081479. The next prime is 121629081491. The reversal of 121629081485 is 584180926121.

It is an interprime number because it is at equal distance from previous prime (121629081479) and next prime (121629081491).

It is a cyclic number.

It is not a de Polignac number, because 121629081485 - 212 = 121629077389 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2595896 + ... + 2642334.

It is an arithmetic number, because the mean of its divisors is an integer number (9172132200).

Almost surely, 2121629081485 is an apocalyptic number.

It is an amenable number.

121629081485 is a deficient number, since it is larger than the sum of its proper divisors (25125033715).

121629081485 is a wasteful number, since it uses less digits than its factorization.

121629081485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49300.

The product of its (nonzero) digits is 276480, while the sum is 47.

The spelling of 121629081485 in words is "one hundred twenty-one billion, six hundred twenty-nine million, eighty-one thousand, four hundred eighty-five".

Divisors: 1 5 197 985 2659 13295 46439 232195 523823 2619115 9148483 45742415 123481301 617406505 24325816297 121629081485