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103820980 = 2255191049
BaseRepresentation
bin1100011000000…
…10111010110100
321020100122121111
412030002322310
5203034232410
614145124404
72400315034
oct614027264
9236318544
10103820980
115367126a
122a929704
1318680a43
14db078c4
1591abb8a
hex6302eb4

103820980 has 12 divisors (see below), whose sum is σ = 218024100. Its totient is φ = 41528384.

The previous prime is 103820939. The next prime is 103820993. The reversal of 103820980 is 89028301.

It can be written as a sum of positive squares in 2 ways, for example, as 66781584 + 37039396 = 8172^2 + 6086^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2595505 + ... + 2595544.

It is an arithmetic number, because the mean of its divisors is an integer number (18168675).

Almost surely, 2103820980 is an apocalyptic number.

103820980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

103820980 is an abundant number, since it is smaller than the sum of its proper divisors (114203120).

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

103820980 is a wasteful number, since it uses less digits than its factorization.

103820980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5191058 (or 5191056 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 103820980 is about 10189.2580691628. The cubic root of 103820980 is about 469.9969518438.

The spelling of 103820980 in words is "one hundred three million, eight hundred twenty thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 20 5191049 10382098 20764196 25955245 51910490 103820980