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16243239160825 = 5214940110874317
BaseRepresentation
bin1110110001011110110010…
…0000000000101111111001
32010111211122021011110000221
43230113230200000233321
54112112123211121300
654314012511300041
73264351415535035
oct354275440005771
963454567143027
1016243239160825
1151a27a0056126
1219a406bb1a621
1390a96698a141
1440226986b1c5
151d27cd3bd31a
hexec5ec800bf9

16243239160825 has 24 divisors (see below), whose sum is σ = 20327362637400. Its totient is φ = 12875190144000.

The previous prime is 16243239160741. The next prime is 16243239160847. The reversal of 16243239160825 is 52806193234261.

16243239160825 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 12 ways, for example, as 5691292523449 + 10551946637376 = 2385643^2 + 3248376^2 .

It is not a de Polignac number, because 16243239160825 - 215 = 16243239128057 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3943434 + ... + 6930883.

It is an arithmetic number, because the mean of its divisors is an integer number (846973443225).

Almost surely, 216243239160825 is an apocalyptic number.

It is an amenable number.

16243239160825 is a deficient number, since it is larger than the sum of its proper divisors (4084123476575).

16243239160825 is a wasteful number, since it uses less digits than its factorization.

16243239160825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10874877 (or 10874872 counting only the distinct ones).

The product of its (nonzero) digits is 3732480, while the sum is 52.

The spelling of 16243239160825 in words is "sixteen trillion, two hundred forty-three billion, two hundred thirty-nine million, one hundred sixty thousand, eight hundred twenty-five".

Divisors: 1 5 25 149 401 745 2005 3725 10025 59749 298745 1493725 10874317 54371585 271857925 1620273233 4360601117 8101366165 21803005585 40506830825 109015027925 649729566433 3248647832165 16243239160825