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15990050495 = 519592852819
BaseRepresentation
bin11101110010001010…
…01100111010111111
31112021101002201122102
432321011030322333
5230221423103440
611202402135315
71104151121006
oct167105147277
945241081572
1015990050495
116865a6a671
12312305153b
13167a9b1653
14ab9901c3d
15638bccb15
hex3b914cebf

15990050495 has 16 divisors (see below), whose sum is σ = 20540304000. Its totient is φ = 11913367968.

The previous prime is 15990050413. The next prime is 15990050497. The reversal of 15990050495 is 59405009951.

It is a cyclic number.

It is not a de Polignac number, because 15990050495 - 226 = 15922941631 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15990050497) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1420805 + ... + 1432014.

It is an arithmetic number, because the mean of its divisors is an integer number (1283769000).

Almost surely, 215990050495 is an apocalyptic number.

15990050495 is a deficient number, since it is larger than the sum of its proper divisors (4550253505).

15990050495 is a wasteful number, since it uses less digits than its factorization.

15990050495 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2852902.

The product of its (nonzero) digits is 364500, while the sum is 47.

The spelling of 15990050495 in words is "fifteen billion, nine hundred ninety million, fifty thousand, four hundred ninety-five".

Divisors: 1 5 19 59 95 295 1121 5605 2852819 14264095 54203561 168316321 271017805 841581605 3198010099 15990050495