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109387120 = 2451367339
BaseRepresentation
bin1101000010100…
…01110101110000
321121211102220211
412201101311300
5211000341440
614504313504
72465526613
oct641216560
9247742824
10109387120
1156823187
1230772894
131987c40b
141075617a
15990aeea
hex6851d70

109387120 has 20 divisors (see below), whose sum is σ = 254325240. Its totient is φ = 43754816.

The previous prime is 109387067. The next prime is 109387147. The reversal of 109387120 is 21783901.

It is a tau number, because it is divible by the number of its divisors (20).

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, 683590 + ... + 683749.

It is an arithmetic number, because the mean of its divisors is an integer number (12716262).

Almost surely, 2109387120 is an apocalyptic number.

109387120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

109387120 is an abundant number, since it is smaller than the sum of its proper divisors (144938120).

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

109387120 is a wasteful number, since it uses less digits than its factorization.

109387120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1367352 (or 1367346 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 31.

The square root of 109387120 is about 10458.8297624543. The cubic root of 109387120 is about 478.2504595938.

The spelling of 109387120 in words is "one hundred nine million, three hundred eighty-seven thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 40 80 1367339 2734678 5469356 6836695 10938712 13673390 21877424 27346780 54693560 109387120