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120820493360 = 2457215750881
BaseRepresentation
bin111000010000101110…
…1100110110000110000
3102112212012001222210102
41300201131212300300
53434420021241420
6131300522251532
711505021151220
oct1604135466060
9375765058712
10120820493360
1147270022a06
121b4ba656ba8
13b5161940b8
145bc22c8080
153222029a75
hex1c21766c30

120820493360 has 40 divisors (see below), whose sum is σ = 321037312416. Its totient is φ = 41424168960.

The previous prime is 120820493357. The next prime is 120820493377. The reversal of 120820493360 is 63394028021.

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

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, 107874881 + ... + 107876000.

Almost surely, 2120820493360 is an apocalyptic number.

120820493360 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120820493360 is an abundant number, since it is smaller than the sum of its proper divisors (200216819056).

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

120820493360 is a wasteful number, since it uses less digits than its factorization.

120820493360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215750901 (or 215750895 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 38.

The spelling of 120820493360 in words is "one hundred twenty billion, eight hundred twenty million, four hundred ninety-three thousand, three hundred sixty".

Divisors: 1 2 4 5 7 8 10 14 16 20 28 35 40 56 70 80 112 140 280 560 215750881 431501762 863003524 1078754405 1510256167 1726007048 2157508810 3020512334 3452014096 4315017620 6041024668 7551280835 8630035240 12082049336 15102561670 17260070480 24164098672 30205123340 60410246680 120820493360