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93008707985 = 518601741597
BaseRepresentation
bin101011010011111000…
…0000100000110010001
322220001221021220120102
41112213300010012101
53010440212123420
6110421055222145
76501561654644
oct1264760040621
9286057256512
1093008707985
1136498a99a16
1216038517955
138a0326526b
14470472da5b
152645590a75
hex15a7c04191

93008707985 has 4 divisors (see below), whose sum is σ = 111610449588. Its totient is φ = 74406966384.

The previous prime is 93008707963. The next prime is 93008708071. The reversal of 93008707985 is 58970780039.

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 42759209089 + 50249498896 = 206783^2 + 224164^2 .

It is a cyclic number.

It is not a de Polignac number, because 93008707985 - 224 = 92991930769 is a prime.

It is a super-2 number, since 2×930087079852 (a number of 23 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 93008707985.

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, 9300870794 + ... + 9300870803.

It is an arithmetic number, because the mean of its divisors is an integer number (27902612397).

Almost surely, 293008707985 is an apocalyptic number.

It is an amenable number.

93008707985 is a deficient number, since it is larger than the sum of its proper divisors (18601741603).

93008707985 is a wasteful number, since it uses less digits than its factorization.

93008707985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18601741602.

The product of its (nonzero) digits is 3810240, while the sum is 56.

The spelling of 93008707985 in words is "ninety-three billion, eight million, seven hundred seven thousand, nine hundred eighty-five".

Divisors: 1 5 18601741597 93008707985