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13122043390 = 251312204339
BaseRepresentation
bin11000011100010001…
…00111110111111110
31020212111102212112001
430032020213313332
5203333220342030
610010030532514
7643114346161
oct141610476776
936774385461
1013122043390
115624062465
12266266713a
131311762a21
148c6a57ad8
1551c00ccca
hex30e227dfe

13122043390 has 8 divisors (see below), whose sum is σ = 23619678120. Its totient is φ = 5248817352.

The previous prime is 13122043381. The next prime is 13122043391. The reversal of 13122043390 is 9334022131.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13122043391) 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, 656102160 + ... + 656102179.

It is an arithmetic number, because the mean of its divisors is an integer number (2952459765).

Almost surely, 213122043390 is an apocalyptic number.

13122043390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13122043390 is a deficient number, since it is larger than the sum of its proper divisors (10497634730).

13122043390 is a wasteful number, since it uses less digits than its factorization.

13122043390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1312204346.

The product of its (nonzero) digits is 3888, while the sum is 28.

The spelling of 13122043390 in words is "thirteen billion, one hundred twenty-two million, forty-three thousand, three hundred ninety".

Divisors: 1 2 5 10 1312204339 2624408678 6561021695 13122043390