Search a number
-
+
109012919 = 2394391039
BaseRepresentation
bin1100111111101…
…10011110110111
321121010102121112
412133312132313
5210401403134
614452305235
72462410631
oct637663667
9247112545
10109012919
1156598024
123061221b
131977acb2
1410699a51
1598851ce
hex67f67b7

109012919 has 8 divisors (see below), whose sum is σ = 109824000. Its totient is φ = 108205272.

The previous prime is 109012913. The next prime is 109012927. The reversal of 109012919 is 919210901.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 109012919 - 220 = 107964343 is a prime.

It is a super-2 number, since 2×1090129192 = 23767633017801122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109012913) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104402 + ... + 105440.

It is an arithmetic number, because the mean of its divisors is an integer number (13728000).

Almost surely, 2109012919 is an apocalyptic number.

109012919 is a deficient number, since it is larger than the sum of its proper divisors (811081).

109012919 is a wasteful number, since it uses less digits than its factorization.

109012919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1717.

The product of its (nonzero) digits is 1458, while the sum is 32.

The square root of 109012919 is about 10440.9251984678. The cubic root of 109012919 is about 477.7044895919.

The spelling of 109012919 in words is "one hundred nine million, twelve thousand, nine hundred nineteen".

Divisors: 1 239 439 1039 104921 248321 456121 109012919