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87691822014 = 2343339890783
BaseRepresentation
bin101000110101011010…
…1110000001110111110
322101100101122010011210
41101222311300032332
52414043101301024
6104141324025250
76223041121446
oct1215265601676
9271311563153
1087691822014
113420a824885
1214bb3992226
1383668759a4
14435c541126
1524338e2129
hex146ad703be

87691822014 has 16 divisors (see below), whose sum is σ = 179462333952. Its totient is φ = 28550825688.

The previous prime is 87691821967. The next prime is 87691822069. The reversal of 87691822014 is 41022819678.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 169945134 + ... + 169945649.

It is an arithmetic number, because the mean of its divisors is an integer number (11216395872).

Almost surely, 287691822014 is an apocalyptic number.

87691822014 is an abundant number, since it is smaller than the sum of its proper divisors (91770511938).

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

87691822014 is a wasteful number, since it uses less digits than its factorization.

87691822014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339890831.

The product of its (nonzero) digits is 387072, while the sum is 48.

The spelling of 87691822014 in words is "eighty-seven billion, six hundred ninety-one million, eight hundred twenty-two thousand, fourteen".

Divisors: 1 2 3 6 43 86 129 258 339890783 679781566 1019672349 2039344698 14615303669 29230607338 43845911007 87691822014