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13038947320 = 235746567669
BaseRepresentation
bin11000010010010111…
…01000101111111000
31020122201002011010211
430021023220233320
5203200432303240
65553501520504
7641055136450
oct141113505770
936581064124
1013038947320
115591167123
12263a873134
1312ca48a359
148b99c6d60
15514a96bea
hex3092e8bf8

13038947320 has 32 divisors (see below), whose sum is σ = 33528722400. Its totient is φ = 4470496128.

The previous prime is 13038947309. The next prime is 13038947321. The reversal of 13038947320 is 2374983031.

13038947320 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13038947321) 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, 23283555 + ... + 23284114.

It is an arithmetic number, because the mean of its divisors is an integer number (1047772575).

Almost surely, 213038947320 is an apocalyptic number.

13038947320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13038947320 is an abundant number, since it is smaller than the sum of its proper divisors (20489775080).

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

13038947320 is a wasteful number, since it uses less digits than its factorization.

13038947320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46567687 (or 46567683 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 40.

The spelling of 13038947320 in words is "thirteen billion, thirty-eight million, nine hundred forty-seven thousand, three hundred twenty".

Divisors: 1 2 4 5 7 8 10 14 20 28 35 40 56 70 140 280 46567669 93135338 186270676 232838345 325973683 372541352 465676690 651947366 931353380 1303894732 1629868415 1862706760 2607789464 3259736830 6519473660 13038947320