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80134688140 = 22513319942269
BaseRepresentation
bin100101010100001100…
…1100100110110001100
321122211201112221101121
41022220121210312030
52303103440010030
6100451404250324
75534545416253
oct1125031446614
9248751487347
1080134688140
1130a91a402a1
1213644b409a4
137731002440
143c429d979a
15214022647a
hex12a8664d8c

80134688140 has 48 divisors (see below), whose sum is σ = 187073752320. Its totient is φ = 28633731840.

The previous prime is 80134688129. The next prime is 80134688189. The reversal of 80134688140 is 4188643108.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4963075 + ... + 4979194.

It is an arithmetic number, because the mean of its divisors is an integer number (3897369840).

Almost surely, 280134688140 is an apocalyptic number.

It is an amenable number.

80134688140 is an abundant number, since it is smaller than the sum of its proper divisors (106939064180).

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

80134688140 is a wasteful number, since it uses less digits than its factorization.

80134688140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9942322 (or 9942320 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 43.

The spelling of 80134688140 in words is "eighty billion, one hundred thirty-four million, six hundred eighty-eight thousand, one hundred forty".

Divisors: 1 2 4 5 10 13 20 26 31 52 62 65 124 130 155 260 310 403 620 806 1612 2015 4030 8060 9942269 19884538 39769076 49711345 99422690 129249497 198845380 258498994 308210339 516997988 616420678 646247485 1232841356 1292494970 1541051695 2584989940 3082103390 4006734407 6164206780 8013468814 16026937628 20033672035 40067344070 80134688140