Search a number
-
+
123490115 = 573528289
BaseRepresentation
bin1110101110001…
…00111101000011
322121100221120222
413113010331003
5223103140430
620130453255
73026435330
oct727047503
9277327528
10123490115
1163785a51
123543422b
131c779698
1412587987
15ac949e5
hex75c4f43

123490115 has 8 divisors (see below), whose sum is σ = 169357920. Its totient is φ = 84678912.

The previous prime is 123490111. The next prime is 123490123. The reversal of 123490115 is 511094321.

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 123490115 - 22 = 123490111 is a prime.

It is not an unprimeable number, because it can be changed into a prime (123490111) 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, 1764110 + ... + 1764179.

It is an arithmetic number, because the mean of its divisors is an integer number (21169740).

Almost surely, 2123490115 is an apocalyptic number.

123490115 is a deficient number, since it is larger than the sum of its proper divisors (45867805).

123490115 is an equidigital number, since it uses as much as digits as its factorization.

123490115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3528301.

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 123490115 is about 11112.6106293706. The cubic root of 123490115 is about 497.9786593759.

The spelling of 123490115 in words is "one hundred twenty-three million, four hundred ninety thousand, one hundred fifteen".

Divisors: 1 5 7 35 3528289 17641445 24698023 123490115