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12717040502 = 2172915598273
BaseRepresentation
bin10111101011111111…
…01010001101110110
31012211021100121000002
423311333222031312
5202021030244002
65501522151302
7630066026555
oct136577521566
935737317002
1012717040502
11543648a831
12256aab2532
13127888c24a
14888d4dd9c
154e66ac002
hex2f5fea376

12717040502 has 32 divisors (see below), whose sum is σ = 20910052800. Its totient is φ = 5773723648.

The previous prime is 12717040471. The next prime is 12717040507. The reversal of 12717040502 is 20504071721.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12717040507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1533038 + ... + 1541310.

It is an arithmetic number, because the mean of its divisors is an integer number (653439150).

Almost surely, 212717040502 is an apocalyptic number.

12717040502 is a deficient number, since it is larger than the sum of its proper divisors (8193012298).

12717040502 is a wasteful number, since it uses less digits than its factorization.

12717040502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9880.

The product of its (nonzero) digits is 3920, while the sum is 29.

The spelling of 12717040502 in words is "twelve billion, seven hundred seventeen million, forty thousand, five hundred two".

Divisors: 1 2 17 29 34 58 493 986 1559 3118 8273 16546 26503 45211 53006 90422 140641 239917 281282 479834 768587 1537174 4078589 8157178 12897607 25795214 219259319 374030603 438518638 748061206 6358520251 12717040502