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928007880073 = 5115718140389
BaseRepresentation
bin11011000000100011001…
…01000111110110001001
310021201100110112210210221
431200101211013312021
5110201030004130243
61550153153310041
7124021620554401
oct15402145076611
93251313483727
10928007880073
1132862528971a
1212ba2bb65321
1369684205801
1432cb7027801
15192162ecbed
hexd811947d89

928007880073 has 4 divisors (see below), whose sum is σ = 928026071620. Its totient is φ = 927989688528.

The previous prime is 928007880067. The next prime is 928007880091. The reversal of 928007880073 is 370088700829.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 481480556544 + 446527323529 = 693888^2 + 668227^2 .

It is a cyclic number.

It is not a de Polignac number, because 928007880073 - 217 = 928007749001 is a prime.

It is a super-2 number, since 2×9280078800732 (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 928007880073.

It is not an unprimeable number, because it can be changed into a prime (928017880073) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9019038 + ... + 9121351.

It is an arithmetic number, because the mean of its divisors is an integer number (232006517905).

Almost surely, 2928007880073 is an apocalyptic number.

It is an amenable number.

928007880073 is a deficient number, since it is larger than the sum of its proper divisors (18191547).

928007880073 is a wasteful number, since it uses less digits than its factorization.

928007880073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18191546.

The product of its (nonzero) digits is 1354752, while the sum is 52.

The spelling of 928007880073 in words is "nine hundred twenty-eight billion, seven million, eight hundred eighty thousand, seventy-three".

Divisors: 1 51157 18140389 928007880073