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109739369 = 172379721
BaseRepresentation
bin1101000101001…
…11110101101001
321122111100010002
412202213311221
5211043124434
614520032345
72501524565
oct642476551
9248440102
10109739369
1156a438a3
12309026b5
131997384c
14108086a5
15997a57e
hex68a7d69

109739369 has 6 divisors (see below), whose sum is σ = 116574654. Its totient is φ = 103283840.

The previous prime is 109739359. The next prime is 109739381. The reversal of 109739369 is 963937901.

It can be divided in two parts, 10 and 9739369, that added together give a palindrome (9739379).

It can be written as a sum of positive squares in 3 ways, for example, as 72675625 + 37063744 = 8525^2 + 6088^2 .

It is not a de Polignac number, because 109739369 - 24 = 109739353 is a prime.

It is a super-2 number, since 2×1097393692 = 24085458217036322, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (109739339) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 189572 + ... + 190149.

It is an arithmetic number, because the mean of its divisors is an integer number (19429109).

Almost surely, 2109739369 is an apocalyptic number.

It is an amenable number.

109739369 is a deficient number, since it is larger than the sum of its proper divisors (6835285).

109739369 is an equidigital number, since it uses as much as digits as its factorization.

109739369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 379755 (or 379738 counting only the distinct ones).

The product of its (nonzero) digits is 275562, while the sum is 47.

The square root of 109739369 is about 10475.6560176440. The cubic root of 109739369 is about 478.7632644535.

The spelling of 109739369 in words is "one hundred nine million, seven hundred thirty-nine thousand, three hundred sixty-nine".

Divisors: 1 17 289 379721 6455257 109739369