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109928420 = 2257785203
BaseRepresentation
bin1101000110101…
…01111111100100
321122211221102222
412203111333210
5211120202140
614524051512
72503243010
oct643257744
9248757388
10109928420
1157062938
1230993b98
1319a0b904
1410857540
1599b65b5
hex68d5fe4

109928420 has 24 divisors (see below), whose sum is σ = 263828544. Its totient is φ = 37689696.

The previous prime is 109928419. The next prime is 109928447. The reversal of 109928420 is 24829901.

It is a Harshad number since it is a multiple of its sum of digits (35).

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, 392462 + ... + 392741.

It is an arithmetic number, because the mean of its divisors is an integer number (10992856).

Almost surely, 2109928420 is an apocalyptic number.

109928420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

109928420 is an abundant number, since it is smaller than the sum of its proper divisors (153900124).

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

109928420 is a wasteful number, since it uses less digits than its factorization.

109928420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 785219 (or 785217 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 109928420 is about 10484.6754837715. The cubic root of 109928420 is about 479.0380329022.

The spelling of 109928420 in words is "one hundred nine million, nine hundred twenty-eight thousand, four hundred twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 785203 1570406 3140812 3926015 5496421 7852030 10992842 15704060 21985684 27482105 54964210 109928420