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86870240917 = 1923471948069
BaseRepresentation
bin101000011100111011…
…1101010111010010101
322022020010200110210021
41100321313222322111
52410402240202132
6103524014425141
76163503602335
oct1207167527225
9268203613707
1086870240917
1133928a93839
1214a048021b1
1382655a7b25
1442c13990c5
1523d6705997
hex1439deae95

86870240917 has 8 divisors (see below), whose sum is σ = 91481367200. Its totient is φ = 82263015504.

The previous prime is 86870240911. The next prime is 86870240957. The reversal of 86870240917 is 71904207868.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 86870240917 - 211 = 86870238869 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86870240911) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 929442 + ... + 1018627.

It is an arithmetic number, because the mean of its divisors is an integer number (11435170900).

Almost surely, 286870240917 is an apocalyptic number.

It is an amenable number.

86870240917 is a deficient number, since it is larger than the sum of its proper divisors (4611126283).

86870240917 is a wasteful number, since it uses less digits than its factorization.

86870240917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1950435.

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

The spelling of 86870240917 in words is "eighty-six billion, eight hundred seventy million, two hundred forty thousand, nine hundred seventeen".

Divisors: 1 19 2347 44593 1948069 37013311 4572117943 86870240917