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103918590020 = 22571136568811
BaseRepresentation
bin110000011001000000…
…1111101100001000100
3100221020021011100012102
41200302001331201010
53200311124340040
6115423424011232
710336125304130
oct1406201754104
9327207140172
10103918590020
1140087375853
1218182160b18
139a515c906b
14505b6623c0
152a8327d515
hex183207d844

103918590020 has 48 divisors (see below), whose sum is σ = 251611774848. Its totient is φ = 35313922560.

The previous prime is 103918589993. The next prime is 103918590043. The reversal of 103918590020 is 20095819301.

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, 3268586 + ... + 3300225.

It is an arithmetic number, because the mean of its divisors is an integer number (5241911976).

Almost surely, 2103918590020 is an apocalyptic number.

103918590020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

103918590020 is an abundant number, since it is smaller than the sum of its proper divisors (147693184828).

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

103918590020 is a wasteful number, since it uses less digits than its factorization.

103918590020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6568940 (or 6568938 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 38.

The spelling of 103918590020 in words is "one hundred three billion, nine hundred eighteen million, five hundred ninety thousand, twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 113 140 226 452 565 791 1130 1582 2260 3164 3955 7910 15820 6568811 13137622 26275244 32844055 45981677 65688110 91963354 131376220 183926708 229908385 459816770 742275643 919633540 1484551286 2969102572 3711378215 5195929501 7422756430 10391859002 14845512860 20783718004 25979647505 51959295010 103918590020