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15005255140 = 2251634602839
BaseRepresentation
bin11011111100110001…
…00000010111100100
31102201202000221101101
431332120200113210
5221212321131030
610520542405444
71040562364351
oct157630402744
942652027341
1015005255140
116400091307
122aa9290884
131551968cc5
14a24bd1628
155cc5017ca
hex37e6205e4

15005255140 has 24 divisors (see below), whose sum is σ = 31704361920. Its totient is φ = 5965278048.

The previous prime is 15005255123. The next prime is 15005255141. The reversal of 15005255140 is 4155250051.

15005255140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 15005255099 and 15005255108.

It is not an unprimeable number, because it can be changed into a prime (15005255141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2298160 + ... + 2304679.

It is an arithmetic number, because the mean of its divisors is an integer number (1321015080).

Almost surely, 215005255140 is an apocalyptic number.

15005255140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15005255140 is an abundant number, since it is smaller than the sum of its proper divisors (16699106780).

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

15005255140 is a wasteful number, since it uses less digits than its factorization.

15005255140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4603011 (or 4603009 counting only the distinct ones).

The product of its (nonzero) digits is 5000, while the sum is 28.

The spelling of 15005255140 in words is "fifteen billion, five million, two hundred fifty-five thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 163 326 652 815 1630 3260 4602839 9205678 18411356 23014195 46028390 92056780 750262757 1500525514 3001051028 3751313785 7502627570 15005255140