Search a number
-
+
13127922906 = 2372238918691
BaseRepresentation
bin11000011100111110…
…00011010011011010
31020212220111120200220
430032133003103122
5203341222013111
610010400540510
7643215334500
oct141637032332
936786446626
1013127922906
11562740886a
122664621736
131312a40c27
148c7748670
1551c7bee06
hex30e7c34da

13127922906 has 48 divisors (see below), whose sum is σ = 30556933920. Its totient is φ = 3749064480.

The previous prime is 13127922883. The next prime is 13127922949. The reversal of 13127922906 is 60922972131.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 693021 + ... + 711711.

It is an arithmetic number, because the mean of its divisors is an integer number (636602790).

Almost surely, 213127922906 is an apocalyptic number.

13127922906 is an abundant number, since it is smaller than the sum of its proper divisors (17429011014).

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

13127922906 is a wasteful number, since it uses less digits than its factorization.

13127922906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21099 (or 21092 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 42.

The spelling of 13127922906 in words is "thirteen billion, one hundred twenty-seven million, nine hundred twenty-two thousand, nine hundred six".

Divisors: 1 2 3 6 7 14 21 42 49 98 147 294 2389 4778 7167 14334 16723 18691 33446 37382 50169 56073 100338 112146 117061 130837 234122 261674 351183 392511 702366 785022 915859 1831718 2747577 5495154 44652799 89305598 133958397 267916794 312569593 625139186 937708779 1875417558 2187987151 4375974302 6563961453 13127922906