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420038925123 = 31634617692423
BaseRepresentation
bin1100001110011000100…
…01010101101101000011
31111011012020100020110210
412013030101111231003
523340214431100443
6520544015525203
742226645645146
oct6071421255503
91434166306423
10420038925123
11152157028444
12694a6229803
13307c00c449c
14164896dc05d
15add5ca2c33
hex61cc455b43

420038925123 has 32 divisors (see below), whose sum is σ = 565677826560. Its totient is φ = 277228707840.

The previous prime is 420038925091. The next prime is 420038925191. The reversal of 420038925123 is 321529830024.

It is not a de Polignac number, because 420038925123 - 25 = 420038925091 is a prime.

It is not an unprimeable number, because it can be changed into a prime (420038925193) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 173353690 + ... + 173356112.

It is an arithmetic number, because the mean of its divisors is an integer number (17677432080).

Almost surely, 2420038925123 is an apocalyptic number.

420038925123 is a deficient number, since it is larger than the sum of its proper divisors (145638901437).

420038925123 is a wasteful number, since it uses less digits than its factorization.

420038925123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3819.

The product of its (nonzero) digits is 103680, while the sum is 39.

The spelling of 420038925123 in words is "four hundred twenty billion, thirty-eight million, nine hundred twenty-five thousand, one hundred twenty-three".

Divisors: 1 3 163 461 489 769 1383 2307 2423 7269 75143 125347 225429 354509 376041 394949 1063527 1117003 1184847 1863287 3351009 5589861 57784967 173354901 182071489 303715781 546214467 858975307 911147343 2576925921 140012975041 420038925123