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1372392340 = 225116238147
BaseRepresentation
bin101000111001101…
…0000101110010100
310112122101202100221
41101303100232110
510302313023330
6344103044124
746003066564
oct12163205624
93478352327
101372392340
11644752750
12323740644
1318b433697
14d03a6da4
158073eb7a
hex51cd0b94

1372392340 has 24 divisors (see below), whose sum is σ = 3144026592. Its totient is φ = 499051680.

The previous prime is 1372392331. The next prime is 1372392347. The reversal of 1372392340 is 432932731.

It is a junction number, because it is equal to n+sod(n) for n = 1372392296 and 1372392305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1372392347) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3118854 + ... + 3119293.

It is an arithmetic number, because the mean of its divisors is an integer number (131001108).

Almost surely, 21372392340 is an apocalyptic number.

1372392340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1372392340 is an abundant number, since it is smaller than the sum of its proper divisors (1771634252).

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

1372392340 is a wasteful number, since it uses less digits than its factorization.

1372392340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6238167 (or 6238165 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 34.

The square root of 1372392340 is about 37045.8140685287. The cubic root of 1372392340 is about 1111.2866448084.

The spelling of 1372392340 in words is "one billion, three hundred seventy-two million, three hundred ninety-two thousand, three hundred forty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 6238147 12476294 24952588 31190735 62381470 68619617 124762940 137239234 274478468 343098085 686196170 1372392340