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13122312030 = 2325145803467
BaseRepresentation
bin11000011100010011…
…01001011101011110
31020212111221112000200
430032021221131132
5203333302441110
610010040404330
7643116545322
oct141611513536
936774845020
1013122312030
115624226283
1226627766a6
131311828099
148c6ac7982
1551c0626c0
hex30e26975e

13122312030 has 24 divisors (see below), whose sum is σ = 34118011512. Its totient is φ = 3499283184.

The previous prime is 13122312011. The next prime is 13122312041. The reversal of 13122312030 is 3021322131.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 13122311994 and 13122312012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 72901644 + ... + 72901823.

It is an arithmetic number, because the mean of its divisors is an integer number (1421583813).

Almost surely, 213122312030 is an apocalyptic number.

13122312030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13122312030 is an abundant number, since it is smaller than the sum of its proper divisors (20995699482).

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

13122312030 is a wasteful number, since it uses less digits than its factorization.

13122312030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145803480 (or 145803477 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 13122312030 its reverse (3021322131), we get a palindrome (16143634161).

The spelling of 13122312030 in words is "thirteen billion, one hundred twenty-two million, three hundred twelve thousand, thirty".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 145803467 291606934 437410401 729017335 874820802 1312231203 1458034670 2187052005 2624462406 4374104010 6561156015 13122312030