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13051243452 = 22313769108793
BaseRepresentation
bin11000010011110101…
…00010101110111100
31020200120012212021010
430021322202232330
5203212104242302
65555021235220
7641264511312
oct141172425674
936616185233
1013051243452
1155980a5415
122642a02b10
1312ccba4080
148bb4a80b2
15515bc516c
hex309ea2bbc

13051243452 has 48 divisors (see below), whose sum is σ = 32838380960. Its totient is φ = 4010508288.

The previous prime is 13051243411. The next prime is 13051243477. The reversal of 13051243452 is 25434215031.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65568 + ... + 174360.

Almost surely, 213051243452 is an apocalyptic number.

13051243452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13051243452 is an abundant number, since it is smaller than the sum of its proper divisors (19787137508).

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

13051243452 is a wasteful number, since it uses less digits than its factorization.

13051243452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109582 (or 109580 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

Adding to 13051243452 its reverse (25434215031), we get a palindrome (38485458483).

The spelling of 13051243452 in words is "thirteen billion, fifty-one million, two hundred forty-three thousand, four hundred fifty-two".

Divisors: 1 2 3 4 6 12 13 26 39 52 78 156 769 1538 2307 3076 4614 9228 9997 19994 29991 39988 59982 108793 119964 217586 326379 435172 652758 1305516 1414309 2828618 4242927 5657236 8485854 16971708 83661817 167323634 250985451 334647268 501970902 1003941804 1087603621 2175207242 3262810863 4350414484 6525621726 13051243452