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122402320012 = 227107109337379
BaseRepresentation
bin111000111111110111…
…1110010111010001100
3102200221102120010000201
41301333233302322030
54001134443220022
6132121510303244
711562146360560
oct1617757627214
9380842503021
10122402320012
1147a01a11765
121b880357b24
13b708b05cbb
145cd240b6a0
1532b5d39127
hex1c7fbf2e8c

122402320012 has 48 divisors (see below), whose sum is σ = 247325218560. Its totient is φ = 51918939072.

The previous prime is 122402320009. The next prime is 122402320057. The reversal of 122402320012 is 210023204221.

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, 3255939 + ... + 3293317.

It is an arithmetic number, because the mean of its divisors is an integer number (5152608720).

Almost surely, 2122402320012 is an apocalyptic number.

It is an amenable number.

122402320012 is an abundant number, since it is smaller than the sum of its proper divisors (124922898548).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122402320012 is a wasteful number, since it uses less digits than its factorization.

122402320012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38590 (or 38588 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 122402320012 its reverse (210023204221), we get a palindrome (332425524233).

The spelling of 122402320012 in words is "one hundred twenty-two billion, four hundred two million, three hundred twenty thousand, twelve".

Divisors: 1 2 4 7 14 28 107 214 428 749 1093 1498 2186 2996 4372 7651 15302 30604 37379 74758 116951 149516 233902 261653 467804 523306 818657 1046612 1637314 3274628 3999553 7999106 15998212 27996871 40855247 55993742 81710494 111987484 163420988 285986729 571973458 1143946916 4371511429 8743022858 17486045716 30600580003 61201160006 122402320012