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13155131156 = 2219173093831
BaseRepresentation
bin11000100000001101…
…10101111100010100
31020221210200220101212
430100012311330110
5203420203144111
610013212040552
7643665525026
oct142006657424
936853626355
1013155131156
115640801822
122671763158
13131857929b
148cb1cc016
1551ed9698b
hex3101b5f14

13155131156 has 12 divisors (see below), whose sum is σ = 24233136480. Its totient is φ = 6231377880.

The previous prime is 13155131153. The next prime is 13155131159. The reversal of 13155131156 is 65113155131.

It is an interprime number because it is at equal distance from previous prime (13155131153) and next prime (13155131159).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13155131153) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 86546840 + ... + 86546991.

It is an arithmetic number, because the mean of its divisors is an integer number (2019428040).

Almost surely, 213155131156 is an apocalyptic number.

It is an amenable number.

13155131156 is a deficient number, since it is larger than the sum of its proper divisors (11078005324).

13155131156 is a wasteful number, since it uses less digits than its factorization.

13155131156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173093854 (or 173093852 counting only the distinct ones).

The product of its digits is 6750, while the sum is 32.

Adding to 13155131156 its reverse (65113155131), we get a palindrome (78268286287).

The spelling of 13155131156 in words is "thirteen billion, one hundred fifty-five million, one hundred thirty-one thousand, one hundred fifty-six".

Divisors: 1 2 4 19 38 76 173093831 346187662 692375324 3288782789 6577565578 13155131156