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109839020 = 2255491951
BaseRepresentation
bin1101000110000…
…00001010101100
321122200101210212
412203000022230
5211104322040
614522121552
72502421244
oct643001254
9248611725
10109839020
1157001755
12309502b8
13199aa005
1410832b24
159999d65
hex68c02ac

109839020 has 12 divisors (see below), whose sum is σ = 230661984. Its totient is φ = 43935600.

The previous prime is 109839013. The next prime is 109839043. The reversal of 109839020 is 20938901.

It is a super-2 number, since 2×1098390202 = 24129220629120800, which contains 22 as substring.

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, 2745956 + ... + 2745995.

It is an arithmetic number, because the mean of its divisors is an integer number (19221832).

Almost surely, 2109839020 is an apocalyptic number.

109839020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

109839020 is an abundant number, since it is smaller than the sum of its proper divisors (120822964).

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

109839020 is a wasteful number, since it uses less digits than its factorization.

109839020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5491960 (or 5491958 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 32.

The square root of 109839020 is about 10480.4112514729. The cubic root of 109839020 is about 478.9081374214.

The spelling of 109839020 in words is "one hundred nine million, eight hundred thirty-nine thousand, twenty".

Divisors: 1 2 4 5 10 20 5491951 10983902 21967804 27459755 54919510 109839020