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1375712660 = 22579826519
BaseRepresentation
bin101000111111111…
…1011010110010100
310112212122102222202
41101333323112110
510304140301120
6344302144032
746043236040
oct12177732624
93485572882
101375712660
11646610313
12324882018
1318c026a7a
14d09cd020
1580b98875
hex51ffb594

1375712660 has 24 divisors (see below), whose sum is σ = 3301710720. Its totient is φ = 471672864.

The previous prime is 1375712629. The next prime is 1375712669. The reversal of 1375712660 is 662175731.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1375712669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4913120 + ... + 4913399.

It is an arithmetic number, because the mean of its divisors is an integer number (137571280).

Almost surely, 21375712660 is an apocalyptic number.

1375712660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1375712660 is an abundant number, since it is smaller than the sum of its proper divisors (1925998060).

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

1375712660 is a wasteful number, since it uses less digits than its factorization.

1375712660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9826535 (or 9826533 counting only the distinct ones).

The product of its (nonzero) digits is 52920, while the sum is 38.

The square root of 1375712660 is about 37090.6006961332. The cubic root of 1375712660 is about 1112.1821262430.

The spelling of 1375712660 in words is "one billion, three hundred seventy-five million, seven hundred twelve thousand, six hundred sixty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 9826519 19653038 39306076 49132595 68785633 98265190 137571266 196530380 275142532 343928165 687856330 1375712660