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123297061915420 = 22519324465952409
BaseRepresentation
bin11100000010001101010101…
…100100111100101100011100
3121011120002021020110011210021
4130002031111210330230130
5112130044340322243140
61114121515512121524
734653630064103431
oct3402152544745434
9534502236404707
10123297061915420
1136316a99115808
12119b39686962a4
1353a4b2b171993
142263876bbbb88
15e3c38d644b4a
hex70235593cb1c

123297061915420 has 24 divisors (see below), whose sum is σ = 272551400024400. Its totient is φ = 46723097146752.

The previous prime is 123297061915381. The next prime is 123297061915441. The reversal of 123297061915420 is 24519160792321.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 162232975825 + ... + 162232976584.

It is an arithmetic number, because the mean of its divisors is an integer number (11356308334350).

Almost surely, 2123297061915420 is an apocalyptic number.

123297061915420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123297061915420 is an abundant number, since it is smaller than the sum of its proper divisors (149254338108980).

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

123297061915420 is a wasteful number, since it uses less digits than its factorization.

123297061915420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 324465952437 (or 324465952435 counting only the distinct ones).

The product of its (nonzero) digits is 1632960, while the sum is 52.

The spelling of 123297061915420 in words is "one hundred twenty-three trillion, two hundred ninety-seven billion, sixty-one million, nine hundred fifteen thousand, four hundred twenty".

Divisors: 1 2 4 5 10 19 20 38 76 95 190 380 324465952409 648931904818 1297863809636 1622329762045 3244659524090 6164853095771 6489319048180 12329706191542 24659412383084 30824265478855 61648530957710 123297061915420