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1379497372 = 2211183117123
BaseRepresentation
bin101001000111001…
…0111010110011100
310120010202201122021
41102032113112130
510311122403442
6344515225524
746120351141
oct12216272634
93503681567
101379497372
11648765880
12325ba82a4
1318ca50646
14d12d63c8
1581194e67
hex5239759c

1379497372 has 24 divisors (see below), whose sum is σ = 2635178112. Its totient is φ = 626665200.

The previous prime is 1379497363. The next prime is 1379497391. The reversal of 1379497372 is 2737949731.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72003 + ... + 89125.

It is an arithmetic number, because the mean of its divisors is an integer number (109799088).

Almost surely, 21379497372 is an apocalyptic number.

It is an amenable number.

1379497372 is a deficient number, since it is larger than the sum of its proper divisors (1255680740).

1379497372 is a wasteful number, since it uses less digits than its factorization.

1379497372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18969 (or 18967 counting only the distinct ones).

The product of its digits is 2000376, while the sum is 52.

The square root of 1379497372 is about 37141.5854804288. The cubic root of 1379497372 is about 1113.2010974772.

The spelling of 1379497372 in words is "one billion, three hundred seventy-nine million, four hundred ninety-seven thousand, three hundred seventy-two".

Divisors: 1 2 4 11 22 44 1831 3662 7324 17123 20141 34246 40282 68492 80564 188353 376706 753412 31352213 62704426 125408852 344874343 689748686 1379497372