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109953631 is a prime number
BaseRepresentation
bin1101000110111…
…00001001011111
321122220020000201
412203130021133
5211122004011
614524404331
72503406344
oct643341137
9248806021
10109953631
115707a877
12309a66a7
1319a1a228
14108627cb
1599bdcc1
hex68dc25f

109953631 has 2 divisors, whose sum is σ = 109953632. Its totient is φ = 109953630.

The previous prime is 109953629. The next prime is 109953647. The reversal of 109953631 is 136359901.

It is a weak prime.

It is an emirp because it is prime and its reverse (136359901) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 109953631 - 21 = 109953629 is a prime.

It is a super-2 number, since 2×1099536312 = 24179601940168322, which contains 22 as substring.

Together with 109953629, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (109953611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54976815 + 54976816.

It is an arithmetic number, because the mean of its divisors is an integer number (54976816).

Almost surely, 2109953631 is an apocalyptic number.

109953631 is a deficient number, since it is larger than the sum of its proper divisors (1).

109953631 is an equidigital number, since it uses as much as digits as its factorization.

109953631 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21870, while the sum is 37.

The square root of 109953631 is about 10485.8776933550. The cubic root of 109953631 is about 479.0746509873.

The spelling of 109953631 in words is "one hundred nine million, nine hundred fifty-three thousand, six hundred thirty-one".