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75933984997 = 1331745925261
BaseRepresentation
bin100011010111000000…
…1001010100011100101
321020222222012002222201
41012232001022203211
52221003100004442
654514504454501
75325500136313
oct1065601124345
9236888162881
1075933984997
112a226833902
121287217a431
13721193b690
143964b5d0b3
151e965587b7
hex11ae04a8e5

75933984997 has 16 divisors (see below), whose sum is σ = 84427624960. Its totient is φ = 67820068800.

The previous prime is 75933984877. The next prime is 75933985003. The reversal of 75933984997 is 79948933957.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-75933984997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75933984097) 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, 2993347 + ... + 3018607.

It is an arithmetic number, because the mean of its divisors is an integer number (5276726560).

Almost surely, 275933984997 is an apocalyptic number.

It is an amenable number.

75933984997 is a deficient number, since it is larger than the sum of its proper divisors (8493639963).

75933984997 is a wasteful number, since it uses less digits than its factorization.

75933984997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32764.

The product of its digits is 462944160, while the sum is 73.

The spelling of 75933984997 in words is "seventy-five billion, nine hundred thirty-three million, nine hundred eighty-four thousand, nine hundred ninety-seven".

Divisors: 1 13 31 403 7459 25261 96967 231229 328393 783091 3005977 10180183 188421799 2449483387 5841075769 75933984997