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119231161 = 726193931
BaseRepresentation
bin1110001101101…
…01001010111001
322022100120101221
413012311022321
5221010344121
615455312041
72645306500
oct706651271
9268316357
10119231161
1161337155
1233b1b621
131b917caa
1411b99837
15a702b41
hex71b52b9

119231161 has 12 divisors (see below), whose sum is σ = 138956880. Its totient is φ = 102007080.

The previous prime is 119231117. The next prime is 119231179. The reversal of 119231161 is 161132911.

It is not a de Polignac number, because 119231161 - 27 = 119231033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (119231111) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28366 + ... + 32296.

It is an arithmetic number, because the mean of its divisors is an integer number (11579740).

Almost surely, 2119231161 is an apocalyptic number.

It is an amenable number.

119231161 is a deficient number, since it is larger than the sum of its proper divisors (19725719).

119231161 is an equidigital number, since it uses as much as digits as its factorization.

119231161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4564 (or 4557 counting only the distinct ones).

The product of its digits is 324, while the sum is 25.

The square root of 119231161 is about 10919.3022212960. The cubic root of 119231161 is about 492.1867571018.

The spelling of 119231161 in words is "one hundred nineteen million, two hundred thirty-one thousand, one hundred sixty-one".

Divisors: 1 7 49 619 3931 4333 27517 30331 192619 2433289 17033023 119231161