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14990250690 = 23352383127229
BaseRepresentation
bin11011111010111110…
…10001001011000010
31102200200210122011000
431331133101023002
5221200001010230
610515245032430
71040321012532
oct157537211302
942620718130
1014990250690
1163a2673238
122aa4255716
13154b81462c
14a22c074c2
155cb03ab60
hex37d7d12c2

14990250690 has 256 divisors, whose sum is σ = 42732748800. Its totient is φ = 3731422464.

The previous prime is 14990250689. The next prime is 14990250703. The reversal of 14990250690 is 9605209941.

It is a super-2 number, since 2×149902506902 (a number of 21 digits) contains 22 as substring.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 65459496 + ... + 65459724.

It is an arithmetic number, because the mean of its divisors is an integer number (166924800).

Almost surely, 214990250690 is an apocalyptic number.

14990250690 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 14990250690, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21366374400).

14990250690 is an abundant number, since it is smaller than the sum of its proper divisors (27742498110).

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

14990250690 is a wasteful number, since it uses less digits than its factorization.

14990250690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 478 (or 472 counting only the distinct ones).

The product of its (nonzero) digits is 174960, while the sum is 45.

The spelling of 14990250690 in words is "fourteen billion, nine hundred ninety million, two hundred fifty thousand, six hundred ninety".