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1368247153 = 71321156591
BaseRepresentation
bin101000110001101…
…1100101101110001
310112100121011020111
41101203130231301
510300232402103
6343434141321
745622623520
oct12143345561
93470534214
101368247153
11642381379
12322281841
1318a611a00
14cda084b7
15801c186d
hex518dcb71

1368247153 has 12 divisors (see below), whose sum is σ = 1693250688. Its totient is φ = 1082568240.

The previous prime is 1368247151. The next prime is 1368247157. The reversal of 1368247153 is 3517428631.

It is not a de Polignac number, because 1368247153 - 21 = 1368247151 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1368247151) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 577113 + ... + 579478.

It is an arithmetic number, because the mean of its divisors is an integer number (141104224).

Almost surely, 21368247153 is an apocalyptic number.

1368247153 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1368247153 is a deficient number, since it is larger than the sum of its proper divisors (325003535).

1368247153 is a wasteful number, since it uses less digits than its factorization.

1368247153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1156624 (or 1156611 counting only the distinct ones).

The product of its digits is 120960, while the sum is 40.

The square root of 1368247153 is about 36989.8249928274. The cubic root of 1368247153 is about 1110.1666695052.

The spelling of 1368247153 in words is "one billion, three hundred sixty-eight million, two hundred forty-seven thousand, one hundred fifty-three".

Divisors: 1 7 13 91 169 1183 1156591 8096137 15035683 105249781 195463879 1368247153