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101440064080 = 2455921491539
BaseRepresentation
bin101111001111001001…
…1001000101001010000
3100200211112101011210101
41132132103020221100
53130222124022310
6114333444342144
710220531214025
oct1363623105120
9320745334711
10101440064080
113a0252a9603
12177b00a4954
139747c77c74
144ca440154c
15298a89543a
hex179e4c8a50

101440064080 has 40 divisors (see below), whose sum is σ = 239845586400. Its totient is φ = 39888294528.

The previous prime is 101440064059. The next prime is 101440064119. The reversal of 101440064080 is 80460044101.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10741050 + ... + 10750489.

It is an arithmetic number, because the mean of its divisors is an integer number (5996139660).

Almost surely, 2101440064080 is an apocalyptic number.

101440064080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101440064080 is an abundant number, since it is smaller than the sum of its proper divisors (138405522320).

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

101440064080 is a wasteful number, since it uses less digits than its factorization.

101440064080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21491611 (or 21491605 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 28.

The spelling of 101440064080 in words is "one hundred one billion, four hundred forty million, sixty-four thousand, eighty".

Divisors: 1 2 4 5 8 10 16 20 40 59 80 118 236 295 472 590 944 1180 2360 4720 21491539 42983078 85966156 107457695 171932312 214915390 343864624 429830780 859661560 1268000801 1719323120 2536001602 5072003204 6340004005 10144006408 12680008010 20288012816 25360016020 50720032040 101440064080