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125431104200154 = 231941118392266739
BaseRepresentation
bin11100100001010000110100…
…011010001101110111011010
3121110010002121022111121120120
4130201100310122031313122
5112420030400133401104
61122434130452334110
735264045456164524
oct3441206432156732
9543102538447516
10125431104200154
1136a6a03a380005
121209947b014336
1354cb143bb5a1c
1422d8c7d936a14
15e77b3e2aecd9
hex72143468ddda

125431104200154 has 64 divisors (see below), whose sum is σ = 270529072128000. Its totient is φ = 38640447999360.

The previous prime is 125431104200029. The next prime is 125431104200161. The reversal of 125431104200154 is 451002401134521.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 54202117 + ... + 56468855.

It is an arithmetic number, because the mean of its divisors is an integer number (4227016752000).

Almost surely, 2125431104200154 is an apocalyptic number.

125431104200154 is an abundant number, since it is smaller than the sum of its proper divisors (145097967927846).

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

125431104200154 is a wasteful number, since it uses less digits than its factorization.

125431104200154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2278643.

The product of its (nonzero) digits is 19200, while the sum is 33.

Adding to 125431104200154 its reverse (451002401134521), we get a palindrome (576433505334675).

The spelling of 125431104200154 in words is "one hundred twenty-five trillion, four hundred thirty-one billion, one hundred four million, two hundred thousand, one hundred fifty-four".

Divisors: 1 2 3 6 19 38 41 57 82 114 123 246 779 1558 2337 4674 11839 23678 35517 71034 224941 449882 485399 674823 970798 1349646 1456197 2266739 2912394 4533478 6800217 9222581 13600434 18445162 27667743 43068041 55335486 86136082 92936299 129204123 185872598 258408246 278808897 557617794 1765789681 3531579362 5297369043 10594738086 26835923021 53671846042 80507769063 161015538126 509882537399 1019765074798 1100272843861 1529647612197 2200545687722 3059295224394 3300818531583 6601637063166 20905184033359 41810368066718 62715552100077 125431104200154