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1375265140 = 22568763257
BaseRepresentation
bin101000111111000…
…1110000101110100
310112211210201002221
41101332032011310
510304031441030
6344244412124
746036363234
oct12176160564
93484721087
101375265140
11646335067
123246a7044
1318bbcb172
14d0913cc4
1580b0ae7a
hex51f8e174

1375265140 has 12 divisors (see below), whose sum is σ = 2888056836. Its totient is φ = 550106048.

The previous prime is 1375265119. The next prime is 1375265179. The reversal of 1375265140 is 415625731.

It can be written as a sum of positive squares in 2 ways, for example, as 777071376 + 598193764 = 27876^2 + 24458^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1375265096 and 1375265105.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34381609 + ... + 34381648.

It is an arithmetic number, because the mean of its divisors is an integer number (240671403).

Almost surely, 21375265140 is an apocalyptic number.

1375265140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1375265140 is an abundant number, since it is smaller than the sum of its proper divisors (1512791696).

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

1375265140 is a wasteful number, since it uses less digits than its factorization.

1375265140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68763266 (or 68763264 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 34.

The square root of 1375265140 is about 37084.5674101775. The cubic root of 1375265140 is about 1112.0615153675.

The spelling of 1375265140 in words is "one billion, three hundred seventy-five million, two hundred sixty-five thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 68763257 137526514 275053028 343816285 687632570 1375265140