Search a number
-
+
109918441 = 785313997
BaseRepresentation
bin1101000110100…
…11100011101001
321122211102202101
412203103203221
5211114342231
614523533401
72503201633
oct643234351
9248742671
10109918441
1157056396
123098a261
1319a071c9
1410853a53
1599b3661
hex68d38e9

109918441 has 4 divisors (see below), whose sum is σ = 109940292. Its totient is φ = 109896592.

The previous prime is 109918429. The next prime is 109918451. The reversal of 109918441 is 144819901.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 21483225 + 88435216 = 4635^2 + 9404^2 .

It is a cyclic number.

It is not a de Polignac number, because 109918441 - 25 = 109918409 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 109918441.

It is not an unprimeable number, because it can be changed into a prime (109918451) 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, 855 + ... + 14851.

It is an arithmetic number, because the mean of its divisors is an integer number (27485073).

Almost surely, 2109918441 is an apocalyptic number.

It is an amenable number.

109918441 is a deficient number, since it is larger than the sum of its proper divisors (21851).

109918441 is an equidigital number, since it uses as much as digits as its factorization.

109918441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21850.

The product of its (nonzero) digits is 10368, while the sum is 37.

The square root of 109918441 is about 10484.1995879514. The cubic root of 109918441 is about 479.0235372113.

The spelling of 109918441 in words is "one hundred nine million, nine hundred eighteen thousand, four hundred forty-one".

Divisors: 1 7853 13997 109918441