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13040021192 = 2311148182059
BaseRepresentation
bin11000010010011111…
…01110111011001000
31020122210002201012212
430021033232323020
5203201221134232
65553540524252
7641100231332
oct141117567310
936583081185
1013040021192
11559182aa20
12263b0b0688
1312ca775093
148b9bc6452
15514c09eb2
hex3093eeec8

13040021192 has 16 divisors (see below), whose sum is σ = 26672770800. Its totient is φ = 5927282320.

The previous prime is 13040021191. The next prime is 13040021227. The reversal of 13040021192 is 29112004031.

It is not an unprimeable number, because it can be changed into a prime (13040021191) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74090942 + ... + 74091117.

It is an arithmetic number, because the mean of its divisors is an integer number (1667048175).

Almost surely, 213040021192 is an apocalyptic number.

It is an amenable number.

13040021192 is an abundant number, since it is smaller than the sum of its proper divisors (13632749608).

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

13040021192 is a wasteful number, since it uses less digits than its factorization.

13040021192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148182076 (or 148182072 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 23.

The spelling of 13040021192 in words is "thirteen billion, forty million, twenty-one thousand, one hundred ninety-two".

Divisors: 1 2 4 8 11 22 44 88 148182059 296364118 592728236 1185456472 1630002649 3260005298 6520010596 13040021192