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87089007786927 = 355752117898137
BaseRepresentation
bin10011110011010011111101…
…010111110111101110101111
3102102100121221200200001200020
4103303103331113313232233
542403331241443140202
6505120045435533223
724225654541104606
oct2363237527675657
9372317850601606
1087089007786927
1125827271543173
1299265245ba213
1339795c586b093
1417711b8006a3d
15a105b93205bc
hex4f34fd5f7baf

87089007786927 has 8 divisors (see below), whose sum is σ = 116327148644016. Its totient is φ = 57955102727232.

The previous prime is 87089007786923. The next prime is 87089007786943. The reversal of 87089007786927 is 72968770098078.

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

It is not a de Polignac number, because 87089007786927 - 22 = 87089007786923 is a prime.

It is a super-2 number, since 2×870890077869272 (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87089007786923) 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, 26058947398 + ... + 26058950739.

It is an arithmetic number, because the mean of its divisors is an integer number (14540893580502).

Almost surely, 287089007786927 is an apocalyptic number.

87089007786927 is a deficient number, since it is larger than the sum of its proper divisors (29238140857089).

87089007786927 is a wasteful number, since it uses less digits than its factorization.

87089007786927 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52117898697.

The product of its (nonzero) digits is 1194891264, while the sum is 78.

The spelling of 87089007786927 in words is "eighty-seven trillion, eighty-nine billion, seven million, seven hundred eighty-six thousand, nine hundred twenty-seven".

Divisors: 1 3 557 1671 52117898137 156353694411 29029669262309 87089007786927