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109572073 = 1331972803
BaseRepresentation
bin1101000011111…
…10111111101001
321122011211121221
412201332333221
5211022301243
614512302041
72500230052
oct641767751
9248154557
10109572073
115693a136
1230841921
1319915660
14107a3729
159945bed
hex687efe9

109572073 has 16 divisors (see below), whose sum is σ = 123106816. Its totient is φ = 96837120.

The previous prime is 109572053. The next prime is 109572091. The reversal of 109572073 is 370275901.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-109572073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (109572013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37690 + ... + 40492.

It is an arithmetic number, because the mean of its divisors is an integer number (7694176).

Almost surely, 2109572073 is an apocalyptic number.

109572073 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

109572073 is a deficient number, since it is larger than the sum of its proper divisors (13534743).

109572073 is a wasteful number, since it uses less digits than its factorization.

109572073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2944.

The product of its (nonzero) digits is 13230, while the sum is 34.

The square root of 109572073 is about 10467.6679828890. The cubic root of 109572073 is about 478.5198516120.

The spelling of 109572073 in words is "one hundred nine million, five hundred seventy-two thousand, seventy-three".

Divisors: 1 13 31 97 403 1261 2803 3007 36439 39091 86893 271891 1129609 3534583 8428621 109572073