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15000852050 = 252173212
BaseRepresentation
bin11011111100001111…
…01101011001010010
31102201102202020110222
431332013231121102
5221210204231200
610520304153042
71040510065352
oct157607553122
942642666428
1015000852050
1163a8654198
122aa7908782
131550a86b22
14a243a6b62
155cbe31d85
hex37e1ed652

15000852050 has 18 divisors (see below), whose sum is σ = 27903195759. Its totient is φ = 5999994400.

The previous prime is 15000852049. The next prime is 15000852073. The reversal of 15000852050 is 5025800051.

It can be written as a sum of positive squares in 5 ways, for example, as 2418967489 + 12581884561 = 49183^2 + 112169^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=86605.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 857390 + ... + 874710.

Almost surely, 215000852050 is an apocalyptic number.

15000852050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

15000852050 is a deficient number, since it is larger than the sum of its proper divisors (12902343709).

15000852050 is an frugal number, since it uses more digits than its factorization.

15000852050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34654 (or 17328 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 26.

The spelling of 15000852050 in words is "fifteen billion, eight hundred fifty-two thousand, fifty".

Divisors: 1 2 5 10 25 50 17321 34642 86605 173210 433025 866050 300017041 600034082 1500085205 3000170410 7500426025 15000852050