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10531215298664 = 231697775722989
BaseRepresentation
bin1001100100111111110101…
…0110001101000001101000
31101021202220111112102210122
42121033331112031001220
52340020412104024124
634221550140302412
72134566222026414
oct231177526150150
941252814472718
1010531215298664
1133a0299540405
12122102a841a08
135b512138b108
142859dbd4dd44
15133e1b20d75e
hex993fd58d068

10531215298664 has 16 divisors (see below), whose sum is σ = 19757664555300. Its totient is φ = 5262504750592.

The previous prime is 10531215298613. The next prime is 10531215298679. The reversal of 10531215298664 is 46689251213501.

10531215298664 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 2 ways, for example, as 6400687481764 + 4130527816900 = 2529958^2 + 2032370^2 .

It is a super-2 number, since 2×105312152986642 (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 387847919 + ... + 387875070.

Almost surely, 210531215298664 is an apocalyptic number.

It is an amenable number.

10531215298664 is a deficient number, since it is larger than the sum of its proper divisors (9226449256636).

10531215298664 is a wasteful number, since it uses less digits than its factorization.

10531215298664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 775724692 (or 775724688 counting only the distinct ones).

The product of its (nonzero) digits is 3110400, while the sum is 53.

The spelling of 10531215298664 in words is "ten trillion, five hundred thirty-one billion, two hundred fifteen million, two hundred ninety-eight thousand, six hundred sixty-four".

Divisors: 1 2 4 8 1697 3394 6788 13576 775722989 1551445978 3102891956 6205783912 1316401912333 2632803824666 5265607649332 10531215298664