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123471627420 = 22352057860457
BaseRepresentation
bin111001011111101111…
…0111000010010011100
3102210200221122120000210
41302333132320102130
54010332214034140
6132415545252420
711630512342101
oct1627736702234
9383627576023
10123471627420
1148400573199
121bb1a494110
13b8494cb68b
145d9443aaa8
153329b5ad80
hex1cbf7b849c

123471627420 has 24 divisors (see below), whose sum is σ = 345720556944. Its totient is φ = 32925767296.

The previous prime is 123471627353. The next prime is 123471627431. The reversal of 123471627420 is 24726174321.

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, 1028930169 + ... + 1028930288.

It is an arithmetic number, because the mean of its divisors is an integer number (14405023206).

Almost surely, 2123471627420 is an apocalyptic number.

123471627420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123471627420 is an abundant number, since it is smaller than the sum of its proper divisors (222248929524).

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

123471627420 is a wasteful number, since it uses less digits than its factorization.

123471627420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2057860469 (or 2057860467 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 39.

The spelling of 123471627420 in words is "one hundred twenty-three billion, four hundred seventy-one million, six hundred twenty-seven thousand, four hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 2057860457 4115720914 6173581371 8231441828 10289302285 12347162742 20578604570 24694325484 30867906855 41157209140 61735813710 123471627420