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121806040796 = 22113299983891
BaseRepresentation
bin111000101110000110…
…1001010111011011100
3102122101212112222201022
41301130031022323130
53443424321301141
6131542410103312
711541316156316
oct1613415127334
9378355488638
10121806040796
1147726375320
121b73471ab38
13b642410b6b
145c771527b6
15327d803b4b
hex1c5c34aedc

121806040796 has 24 divisors (see below), whose sum is σ = 232548624000. Its totient is φ = 55364044400.

The previous prime is 121806040793. The next prime is 121806040799. The reversal of 121806040796 is 697040608121.

It is an interprime number because it is at equal distance from previous prime (121806040793) and next prime (121806040799).

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121806040793) 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, 1410011 + ... + 1493901.

It is an arithmetic number, because the mean of its divisors is an integer number (9689526000).

Almost surely, 2121806040796 is an apocalyptic number.

It is an amenable number.

121806040796 is a deficient number, since it is larger than the sum of its proper divisors (110742583204).

121806040796 is a wasteful number, since it uses less digits than its factorization.

121806040796 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116905 (or 116903 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 44.

The spelling of 121806040796 in words is "one hundred twenty-one billion, eight hundred six million, forty thousand, seven hundred ninety-six".

Divisors: 1 2 4 11 22 44 32999 65998 83891 131996 167782 335564 362989 725978 922801 1451956 1845602 3691204 2768319109 5536638218 11073276436 30451510199 60903020398 121806040796