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13999500 = 2233531761
BaseRepresentation
bin110101011001…
…110110001100
3222100020201000
4311121312030
512040441000
61220020300
7226664604
oct65316614
928306630
1013999500
1179a2039
124831690
132b92138
141c05c04
151368000
hexd59d8c

13999500 has 192 divisors, whose sum is σ = 48746880. Its totient is φ = 3456000.

The previous prime is 13999481. The next prime is 13999519. The reversal of 13999500 is 599931.

It is an interprime number because it is at equal distance from previous prime (13999481) and next prime (13999519).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 229470 + ... + 229530.

It is an arithmetic number, because the mean of its divisors is an integer number (253890).

Almost surely, 213999500 is an apocalyptic number.

13999500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13999500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24373440).

13999500 is an abundant number, since it is smaller than the sum of its proper divisors (34747380).

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

13999500 is a wasteful number, since it uses less digits than its factorization.

13999500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106 (or 88 counting only the distinct ones).

The product of its (nonzero) digits is 10935, while the sum is 36.

The square root of 13999500 is about 3741.5905708669. The cubic root of 13999500 is about 241.0113571664.

The spelling of 13999500 in words is "thirteen million, nine hundred ninety-nine thousand, five hundred".