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109190271 = 3251145007
BaseRepresentation
bin1101000001000…
…01110001111111
321121110102220010
412200201301333
5210423042041
614500154303
72464046661
oct640416177
9247412803
10109190271
11566a92a3
1230698993
1319810938
1410704531
1598bca16
hex6821c7f

109190271 has 8 divisors (see below), whose sum is σ = 146168064. Its totient is φ = 72503000.

The previous prime is 109190267. The next prime is 109190317. The reversal of 109190271 is 172091901.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 109190271 - 22 = 109190267 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109190231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71751 + ... + 73256.

It is an arithmetic number, because the mean of its divisors is an integer number (18271008).

Almost surely, 2109190271 is an apocalyptic number.

109190271 is a deficient number, since it is larger than the sum of its proper divisors (36977793).

109190271 is a wasteful number, since it uses less digits than its factorization.

109190271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145261.

The product of its (nonzero) digits is 1134, while the sum is 30.

The square root of 109190271 is about 10449.4148640008. The cubic root of 109190271 is about 477.9634067445.

The spelling of 109190271 in words is "one hundred nine million, one hundred ninety thousand, two hundred seventy-one".

Divisors: 1 3 251 753 145007 435021 36396757 109190271