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123352450212 = 223103925710781
BaseRepresentation
bin111001011100001100…
…0010000010010100100
3102210101122101201122010
41302320120100102210
54010111211401322
6132400051034220
711624534345505
oct1627030202244
9383348351563
10123352450212
114834a273632
121baa659b970
13b82a902114
145d82696bac
15331e46920c
hex1cb86104a4

123352450212 has 48 divisors (see below), whose sum is σ = 290675129472. Its totient is φ = 40710109440.

The previous prime is 123352450189. The next prime is 123352450229. The reversal of 123352450212 is 212054253321.

It is a self number, because there is not a number n which added to its sum of digits gives 123352450212.

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, 11436262 + ... + 11447042.

It is an arithmetic number, because the mean of its divisors is an integer number (6055731864).

Almost surely, 2123352450212 is an apocalyptic number.

123352450212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

123352450212 is an abundant number, since it is smaller than the sum of its proper divisors (167322679260).

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

123352450212 is a wasteful number, since it uses less digits than its factorization.

123352450212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20148 (or 20146 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

The spelling of 123352450212 in words is "one hundred twenty-three billion, three hundred fifty-two million, four hundred fifty thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 103 206 309 412 618 1236 9257 10781 18514 21562 27771 32343 37028 43124 55542 64686 111084 129372 953471 1110443 1906942 2220886 2860413 3331329 3813884 4441772 5720826 6662658 11441652 13325316 99799717 199599434 299399151 399198868 598798302 1197596604 10279370851 20558741702 30838112553 41117483404 61676225106 123352450212