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87067734190 = 2521141264329
BaseRepresentation
bin101000100010110100…
…1000011000010101110
322022201220022011121221
41101011221003002232
52411303314443230
6103555351413554
76201422346433
oct1210551030256
9268656264557
1087067734190
1133a1a514418
1214a5a9842ba
138297495158
1442dd6c7b8a
1523e8c1727a
hex1445a430ae

87067734190 has 16 divisors (see below), whose sum is σ = 157464683280. Its totient is φ = 34662035520.

The previous prime is 87067734139. The next prime is 87067734199. The reversal of 87067734190 is 9143776078.

It is a super-2 number, since 2×870677341902 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87067734199) 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, 20630055 + ... + 20634274.

It is an arithmetic number, because the mean of its divisors is an integer number (9841542705).

Almost surely, 287067734190 is an apocalyptic number.

87067734190 is a deficient number, since it is larger than the sum of its proper divisors (70396949090).

87067734190 is a wasteful number, since it uses less digits than its factorization.

87067734190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41264547.

The product of its (nonzero) digits is 1778112, while the sum is 52.

Subtracting from 87067734190 its product of nonzero digits (1778112), we obtain a palindrome (87065956078).

The spelling of 87067734190 in words is "eighty-seven billion, sixty-seven million, seven hundred thirty-four thousand, one hundred ninety".

Divisors: 1 2 5 10 211 422 1055 2110 41264329 82528658 206321645 412643290 8706773419 17413546838 43533867095 87067734190