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12236668290 = 2325711314593
BaseRepresentation
bin10110110010101110…
…01011110110000010
31011120210110011012200
423121113023312002
5200030041341130
65342122134030
7612143651520
oct133127136602
934523404180
1012236668290
11520a30a000
122456051316
1312001ba032
14841227310
154b941e760
hex2d95cbd82

12236668290 has 192 divisors, whose sum is σ = 39996433152. Its totient is φ = 2542510080.

The previous prime is 12236668277. The next prime is 12236668303. The reversal of 12236668290 is 9286663221.

It is an interprime number because it is at equal distance from previous prime (12236668277) and next prime (12236668303).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 831234 + ... + 845826.

It is an arithmetic number, because the mean of its divisors is an integer number (208314756).

Almost surely, 212236668290 is an apocalyptic number.

12236668290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12236668290, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19998216576).

12236668290 is an abundant number, since it is smaller than the sum of its proper divisors (27759764862).

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

12236668290 is a wasteful number, since it uses less digits than its factorization.

12236668290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14646 (or 14621 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 45.

The spelling of 12236668290 in words is "twelve billion, two hundred thirty-six million, six hundred sixty-eight thousand, two hundred ninety".