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1371995357 = 13117360539
BaseRepresentation
bin101000111000110…
…1111110011011101
310112121122120210212
41101301233303131
510302212322412
6344050342205
745666524315
oct12161576335
93477576725
101371995357
11644501467
1232358a965
1318b324a95
14d0302445
15806b2222
hex51c6fcdd

1371995357 has 8 divisors (see below), whose sum is σ = 1390482720. Its totient is φ = 1353629680.

The previous prime is 1371995327. The next prime is 1371995371. The reversal of 1371995357 is 7535991731.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1371995357 - 28 = 1371995101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1371995327) 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, 7607 + ... + 52932.

It is an arithmetic number, because the mean of its divisors is an integer number (173810340).

Almost surely, 21371995357 is an apocalyptic number.

It is an amenable number.

1371995357 is a deficient number, since it is larger than the sum of its proper divisors (18487363).

1371995357 is a wasteful number, since it uses less digits than its factorization.

1371995357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60843.

The product of its digits is 893025, while the sum is 50.

The square root of 1371995357 is about 37040.4556802424. The cubic root of 1371995357 is about 1111.1794829234.

The spelling of 1371995357 in words is "one billion, three hundred seventy-one million, nine hundred ninety-five thousand, three hundred fifty-seven".

Divisors: 1 131 173 22663 60539 7930609 10473247 1371995357