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15660147340 = 2251495255083
BaseRepresentation
bin11101001010110101…
…01110001010001100
31111102101022220121001
432211122232022030
5224032444203330
611105535150044
71063034025145
oct164532561214
944371286531
1015660147340
116706821532
123050675324
131627543996
14a87b86acc
15619c639ca
hex3a56ae28c

15660147340 has 24 divisors (see below), whose sum is σ = 33107029200. Its totient is φ = 6222017088.

The previous prime is 15660147337. The next prime is 15660147341. The reversal of 15660147340 is 4374106651.

15660147340 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 15660147340.

It is not an unprimeable number, because it can be changed into a prime (15660147341) 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, 2624562 + ... + 2630521.

It is an arithmetic number, because the mean of its divisors is an integer number (1379459550).

Almost surely, 215660147340 is an apocalyptic number.

15660147340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15660147340 is an abundant number, since it is smaller than the sum of its proper divisors (17446881860).

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

15660147340 is a wasteful number, since it uses less digits than its factorization.

15660147340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5255241 (or 5255239 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 37.

The spelling of 15660147340 in words is "fifteen billion, six hundred sixty million, one hundred forty-seven thousand, three hundred forty".

Divisors: 1 2 4 5 10 20 149 298 596 745 1490 2980 5255083 10510166 21020332 26275415 52550830 105101660 783007367 1566014734 3132029468 3915036835 7830073670 15660147340