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86187801380 = 225149234712323
BaseRepresentation
bin101000001000100110…
…0010111101100100100
322020110120112221201212
41100101030113230210
52403003034121010
6103332155410552
76140546136602
oct1202114275444
9266416487655
1086187801380
113360884891a
1214854153a58
1381870a6655
1442588b2872
152396851505
hex1411317b24

86187801380 has 48 divisors (see below), whose sum is σ = 182301537600. Its totient is φ = 34226375808.

The previous prime is 86187801347. The next prime is 86187801383. The reversal of 86187801380 is 8310878168.

It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (86187801383) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6987899 + ... + 7000221.

It is an arithmetic number, because the mean of its divisors is an integer number (3797948700).

Almost surely, 286187801380 is an apocalyptic number.

It is an amenable number.

86187801380 is an abundant number, since it is smaller than the sum of its proper divisors (96113736220).

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

86187801380 is a wasteful number, since it uses less digits than its factorization.

86187801380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14828 (or 14826 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 50.

The spelling of 86187801380 in words is "eighty-six billion, one hundred eighty-seven million, eight hundred one thousand, three hundred eighty".

Divisors: 1 2 4 5 10 20 149 298 596 745 1490 2347 2980 4694 9388 11735 12323 23470 24646 46940 49292 61615 123230 246460 349703 699406 1398812 1748515 1836127 3497030 3672254 6994060 7344508 9180635 18361270 28922081 36722540 57844162 115688324 144610405 289220810 578441620 4309390069 8618780138 17237560276 21546950345 43093900690 86187801380