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109191411 = 3271733197
BaseRepresentation
bin1101000001000…
…10000011110011
321121110111110100
412200202003303
5210423111121
614500203443
72464053210
oct640420363
9247414410
10109191411
11566aa13a
1230699583
1319811304
1410704b07
1598bd026
hex68220f3

109191411 has 12 divisors (see below), whose sum is σ = 180252592. Its totient is φ = 62395056.

The previous prime is 109191389. The next prime is 109191413. The reversal of 109191411 is 114191901.

It is not a de Polignac number, because 109191411 - 210 = 109190387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (109191413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 866536 + ... + 866661.

Almost surely, 2109191411 is an apocalyptic number.

109191411 is a deficient number, since it is larger than the sum of its proper divisors (71061181).

109191411 is a wasteful number, since it uses less digits than its factorization.

109191411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1733210 (or 1733207 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 27.

The square root of 109191411 is about 10449.4694123673. The cubic root of 109191411 is about 477.9650701295.

The spelling of 109191411 in words is "one hundred nine million, one hundred ninety-one thousand, four hundred eleven".

Divisors: 1 3 7 9 21 63 1733197 5199591 12132379 15598773 36397137 109191411