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102243605412 = 22313250415979
BaseRepresentation
bin101111100111000110…
…0011001101110100100
3100202220112101022021110
41133032030121232210
53133343330333122
6114545311145020
710246456210104
oct1371614315644
9322815338243
10102243605412
113a3a7939053
1217995215170
13984559aa00
144d3d00d204
1529d61bb90c
hex17ce319ba4

102243605412 has 36 divisors (see below), whose sum is σ = 258331481520. Its totient is φ = 31459570272.

The previous prime is 102243605377. The next prime is 102243605413. The reversal of 102243605412 is 214506342201.

102243605412 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 102243605412.

It is not an unprimeable number, because it can be changed into a prime (102243605413) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25205962 + ... + 25210017.

Almost surely, 2102243605412 is an apocalyptic number.

102243605412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

102243605412 is an abundant number, since it is smaller than the sum of its proper divisors (156087876108).

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

102243605412 is a wasteful number, since it uses less digits than its factorization.

102243605412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50416012 (or 50415997 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

Adding to 102243605412 its reverse (214506342201), we get a palindrome (316749947613).

The spelling of 102243605412 in words is "one hundred two billion, two hundred forty-three million, six hundred five thousand, four hundred twelve".

Divisors: 1 2 3 4 6 12 13 26 39 52 78 156 169 338 507 676 1014 2028 50415979 100831958 151247937 201663916 302495874 604991748 655407727 1310815454 1966223181 2621630908 3932446362 7864892724 8520300451 17040600902 25560901353 34081201804 51121802706 102243605412