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86571420254 = 2119811401087
BaseRepresentation
bin101000010100000001…
…1110000101001011110
322021110022101210220022
41100220003300221132
52404244240422004
6103434221552142
76153214634144
oct1205003605136
9267408353808
1086571420254
1133795345410
1214940715652
138218700a77
144293811594
1523ba37b2be
hex14280f0a5e

86571420254 has 16 divisors (see below), whose sum is σ = 141677116416. Its totient is φ = 39346536600.

The previous prime is 86571420209. The next prime is 86571420263. The reversal of 86571420254 is 45202417568.

It is a super-2 number, since 2×865714202542 (a number of 23 digits) contains 22 as substring.

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, 15299 + ... + 416385.

It is an arithmetic number, because the mean of its divisors is an integer number (8854819776).

Almost surely, 286571420254 is an apocalyptic number.

86571420254 is a deficient number, since it is larger than the sum of its proper divisors (55105696162).

86571420254 is a wasteful number, since it uses less digits than its factorization.

86571420254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 410911.

The product of its (nonzero) digits is 537600, while the sum is 44.

The spelling of 86571420254 in words is "eighty-six billion, five hundred seventy-one million, four hundred twenty thousand, two hundred fifty-four".

Divisors: 1 2 11 22 9811 19622 107921 215842 401087 802174 4411957 8823914 3935064557 7870129114 43285710127 86571420254