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2042415131 = 2637765837
BaseRepresentation
bin111100110111100…
…1100100000011011
312021100011102211212
41321233030200123
513140324241011
6534400013335
7101420146031
oct17157144033
95240142755
102042415131
11958987799
1249000124b
132671a8283
1415537a551
15be49008b
hex79bcc81b

2042415131 has 4 divisors (see below), whose sum is σ = 2050181232. Its totient is φ = 2034649032.

The previous prime is 2042415107. The next prime is 2042415149. The reversal of 2042415131 is 1315142402.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2042415131 is a prime.

It is a super-2 number, since 2×20424151312 = 8342919134675494322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2042415097 and 2042415106.

It is not an unprimeable number, because it can be changed into a prime (2042415631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3882656 + ... + 3883181.

It is an arithmetic number, because the mean of its divisors is an integer number (512545308).

Almost surely, 22042415131 is an apocalyptic number.

2042415131 is a deficient number, since it is larger than the sum of its proper divisors (7766101).

2042415131 is an equidigital number, since it uses as much as digits as its factorization.

2042415131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7766100.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 2042415131 is about 45193.0872036864. The cubic root of 2042415131 is about 1268.7654382164.

Adding to 2042415131 its reverse (1315142402), we get a palindrome (3357557533).

The spelling of 2042415131 in words is "two billion, forty-two million, four hundred fifteen thousand, one hundred thirty-one".

Divisors: 1 263 7765837 2042415131