Search a number
-
+
124377992 = 2339432
BaseRepresentation
bin1110110100111…
…01101110001000
322200001001112022
413122131232020
5223320043432
620201504012
73040124024
oct732355610
9280031468
10124377992
1164232032
12357a2008
131c9ca85b
1412739384
15adbcb12
hex769db88

124377992 has 12 divisors (see below), whose sum is σ = 233267895. Its totient is φ = 62173224.

The previous prime is 124377991. The next prime is 124378021. The reversal of 124377992 is 299773421.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in only one way, i.e., 62188996 + 62188996 = 7886^2 + 7886^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=7886.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (124377991) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 29573 + ... + 33515.

Almost surely, 2124377992 is an apocalyptic number.

It is an amenable number.

124377992 is a deficient number, since it is larger than the sum of its proper divisors (108889903).

124377992 is an frugal number, since it uses more digits than its factorization.

124377992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7892 (or 3945 counting only the distinct ones).

The product of its digits is 190512, while the sum is 44.

The square root of 124377992 is about 11152.4881528742. The cubic root of 124377992 is about 499.1692765615.

The spelling of 124377992 in words is "one hundred twenty-four million, three hundred seventy-seven thousand, nine hundred ninety-two".

Divisors: 1 2 4 8 3943 7886 15772 31544 15547249 31094498 62188996 124377992