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119811901 = 112990181
BaseRepresentation
bin1110010010000…
…10111100111101
322100110002000211
413021002330331
5221132440101
615515552421
72653245556
oct711027475
9270402024
10119811901
11616a3500
123415b711
131ba8c421
1411cab32d
15a7b9c51
hex7242f3d

119811901 has 6 divisors (see below), whose sum is σ = 131694206. Its totient is φ = 108919800.

The previous prime is 119811893. The next prime is 119811941. The reversal of 119811901 is 109118911.

It can be written as a sum of positive squares in only one way, i.e., 118831801 + 980100 = 10901^2 + 990^2 .

It is not a de Polignac number, because 119811901 - 23 = 119811893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (119811941) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 494970 + ... + 495211.

Almost surely, 2119811901 is an apocalyptic number.

119811901 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

119811901 is a deficient number, since it is larger than the sum of its proper divisors (11882305).

119811901 is an equidigital number, since it uses as much as digits as its factorization.

119811901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 990203 (or 990192 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 31.

The square root of 119811901 is about 10945.8622775915. The cubic root of 119811901 is about 492.9845623002.

The spelling of 119811901 in words is "one hundred nineteen million, eight hundred eleven thousand, nine hundred one".

Divisors: 1 11 121 990181 10891991 119811901