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109358129 = 195755691
BaseRepresentation
bin1101000010010…
…10110000110001
321121202222011002
412201022300301
5210443430004
614503531345
72465346236
oct641126061
9247688132
10109358129
1156803421
1230759b55
131986c16a
141074978d
15990261e
hex684ac31

109358129 has 4 divisors (see below), whose sum is σ = 115113840. Its totient is φ = 103602420.

The previous prime is 109358107. The next prime is 109358147. The reversal of 109358129 is 921853901.

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.

It is a cyclic number.

It is not a de Polignac number, because 109358129 - 224 = 92580913 is a prime.

It is a super-3 number, since 3×1093581293 (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 109358092 and 109358101.

It is not an unprimeable number, because it can be changed into a prime (109358149) 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 3 ways as a sum of consecutive naturals, for example, 2877827 + ... + 2877864.

It is an arithmetic number, because the mean of its divisors is an integer number (28778460).

Almost surely, 2109358129 is an apocalyptic number.

109358129 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

109358129 is a deficient number, since it is larger than the sum of its proper divisors (5755711).

109358129 is an equidigital number, since it uses as much as digits as its factorization.

109358129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5755710.

The product of its (nonzero) digits is 19440, while the sum is 38.

The square root of 109358129 is about 10457.4437124949. The cubic root of 109358129 is about 478.2082054291.

The spelling of 109358129 in words is "one hundred nine million, three hundred fifty-eight thousand, one hundred twenty-nine".

Divisors: 1 19 5755691 109358129