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87672027678 = 23101144673313
BaseRepresentation
bin101000110100110101…
…0001111101000011110
322101022000101110110020
41101221222033220132
52414023014341203
6104135335453010
76222410640144
oct1215152175036
9271260343406
1087672027678
11341aa635024
1214ba9227166
138362735071
144359a6b594
152431cd2153
hex1469a8fa1e

87672027678 has 16 divisors (see below), whose sum is σ = 177080136336. Its totient is φ = 28934662400.

The previous prime is 87672027631. The next prime is 87672027727.

It is a happy number.

87672027678 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72336051 + ... + 72337262.

It is an arithmetic number, because the mean of its divisors is an integer number (11067508521).

Almost surely, 287672027678 is an apocalyptic number.

87672027678 is an abundant number, since it is smaller than the sum of its proper divisors (89408108658).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

87672027678 is a wasteful number, since it uses less digits than its factorization.

87672027678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144673419.

The product of its (nonzero) digits is 22127616, while the sum is 60.

The spelling of 87672027678 in words is "eighty-seven billion, six hundred seventy-two million, twenty-seven thousand, six hundred seventy-eight".

Divisors: 1 2 3 6 101 202 303 606 144673313 289346626 434019939 868039878 14612004613 29224009226 43836013839 87672027678