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108911053 = 389279977
BaseRepresentation
bin1100111110111…
…01100111001101
321120221020212201
412133131213031
5210340123203
614450201501
72461504636
oct637354715
9246836781
10108911053
1156528539
1230583291
1319743814
141067088d
159864e1d
hex67dd9cd

108911053 has 4 divisors (see below), whose sum is σ = 109191420. Its totient is φ = 108630688.

The previous prime is 108911041. The next prime is 108911083. The reversal of 108911053 is 350119801.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 45198729 + 63712324 = 6723^2 + 7982^2 .

It is a cyclic number.

It is not a de Polignac number, because 108911053 - 221 = 106813901 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 (108911083) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 139600 + ... + 140377.

It is an arithmetic number, because the mean of its divisors is an integer number (27297855).

Almost surely, 2108911053 is an apocalyptic number.

It is an amenable number.

108911053 is a deficient number, since it is larger than the sum of its proper divisors (280367).

108911053 is an equidigital number, since it uses as much as digits as its factorization.

108911053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280366.

The product of its (nonzero) digits is 1080, while the sum is 28.

The square root of 108911053 is about 10436.0458508000. The cubic root of 108911053 is about 477.5556478734. Note that the first 3 decimals are identical.

The spelling of 108911053 in words is "one hundred eight million, nine hundred eleven thousand, fifty-three".

Divisors: 1 389 279977 108911053