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103909053 = 334636351
BaseRepresentation
bin1100011000110…
…00011010111101
321020112010102110
412030120122331
5203100042203
614151044233
72401132563
oct614303275
9236463373
10103909053
1153721456
122a970679
13186b1b61
14db2ba33
1591c7d03
hex63186bd

103909053 has 4 divisors (see below), whose sum is σ = 138545408. Its totient is φ = 69272700.

The previous prime is 103909031. The next prime is 103909079. The reversal of 103909053 is 350909301.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 350909301 = 3116969767.

It is not a de Polignac number, because 103909053 - 25 = 103909021 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 103909053.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103909093) 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, 17318173 + ... + 17318178.

It is an arithmetic number, because the mean of its divisors is an integer number (34636352).

Almost surely, 2103909053 is an apocalyptic number.

It is an amenable number.

103909053 is a deficient number, since it is larger than the sum of its proper divisors (34636355).

103909053 is an equidigital number, since it uses as much as digits as its factorization.

103909053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34636354.

The product of its (nonzero) digits is 3645, while the sum is 30.

The square root of 103909053 is about 10193.5790083758. The cubic root of 103909053 is about 470.1298162609.

The spelling of 103909053 in words is "one hundred three million, nine hundred nine thousand, fifty-three".

Divisors: 1 3 34636351 103909053