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123013203015054 = 231129233927477649
BaseRepresentation
bin11011111110000100111110…
…010001001011010110001110
3121010112221120121211222011010
4123332010332101023112032
5112110422014432440204
61113343252454510050
734624260563211432
oct3376047621132616
9533487517758133
10123013203015054
1136217674177580
1211968948965326
135384131400001
142253c2965a9c2
15e34cc804dd89
hex6fe13e44b58e

123013203015054 has 64 divisors (see below), whose sum is σ = 277766068320000. Its totient is φ = 35975934973440.

The previous prime is 123013203015049. The next prime is 123013203015077. The reversal of 123013203015054 is 450510302310321.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9261979 + ... + 18215670.

It is an arithmetic number, because the mean of its divisors is an integer number (4340094817500).

Almost surely, 2123013203015054 is an apocalyptic number.

123013203015054 is an abundant number, since it is smaller than the sum of its proper divisors (154752865304946).

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

123013203015054 is a wasteful number, since it uses less digits than its factorization.

123013203015054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27480033.

The product of its (nonzero) digits is 10800, while the sum is 30.

Adding to 123013203015054 its reverse (450510302310321), we get a palindrome (573523505325375).

The spelling of 123013203015054 in words is "one hundred twenty-three trillion, thirteen billion, two hundred three million, fifteen thousand, fifty-four".

Divisors: 1 2 3 6 11 22 29 33 58 66 87 174 319 638 957 1914 2339 4678 7017 14034 25729 51458 67831 77187 135662 154374 203493 406986 746141 1492282 2238423 4476846 27477649 54955298 82432947 164865894 302254139 604508278 796851821 906762417 1593703642 1813524834 2390555463 4781110926 8765370031 17530740062 26296110093 52592220186 64270221011 128540442022 192810663033 385621326066 706972431121 1413944862242 1863836409319 2120917293363 3727672818638 4241834586726 5591509227957 11183018455914 20502200502509 41004401005018 61506601507527 123013203015054