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109712453 = 271404843
BaseRepresentation
bin1101000101000…
…01010001000101
321122102222012012
412202201101011
5211041244303
614515304005
72501353244
oct642412105
9248388165
10109712453
1156a25654
12308ab005
1319964516
14107dc95b
1599725d8
hex68a1445

109712453 has 4 divisors (see below), whose sum is σ = 110117568. Its totient is φ = 109307340.

The previous prime is 109712443. The next prime is 109712483. The reversal of 109712453 is 354217901.

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: 354217901 = 418639461.

It is a cyclic number.

It is not a de Polignac number, because 109712453 - 26 = 109712389 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 (109712443) 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, 202151 + ... + 202692.

It is an arithmetic number, because the mean of its divisors is an integer number (27529392).

Almost surely, 2109712453 is an apocalyptic number.

It is an amenable number.

109712453 is a deficient number, since it is larger than the sum of its proper divisors (405115).

109712453 is an equidigital number, since it uses as much as digits as its factorization.

109712453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 405114.

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 109712453 is about 10474.3712460462. The cubic root of 109712453 is about 478.7241188371.

The spelling of 109712453 in words is "one hundred nine million, seven hundred twelve thousand, four hundred fifty-three".

Divisors: 1 271 404843 109712453