Search a number
-
+
1905625696 = 25134580831
BaseRepresentation
bin111000110010101…
…1000101001100000
311220210202211000111
41301211120221200
512400320010241
6513032101104
765136360022
oct16145305140
94823684014
101905625696
11898748877
12452234794
13244a53390
14141130012
15b246ec81
hex71958a60

1905625696 has 24 divisors (see below), whose sum is σ = 4040293824. Its totient is φ = 879519360.

The previous prime is 1905625661. The next prime is 1905625703. The reversal of 1905625696 is 6965265091.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2290000 + ... + 2290831.

It is an arithmetic number, because the mean of its divisors is an integer number (168345576).

Almost surely, 21905625696 is an apocalyptic number.

1905625696 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1905625696 is an abundant number, since it is smaller than the sum of its proper divisors (2134668128).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1905625696 is a wasteful number, since it uses less digits than its factorization.

1905625696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4580854 (or 4580846 counting only the distinct ones).

The product of its (nonzero) digits is 874800, while the sum is 49.

The square root of 1905625696 is about 43653.4728973538. The cubic root of 1905625696 is about 1239.7835418212.

The spelling of 1905625696 in words is "one billion, nine hundred five million, six hundred twenty-five thousand, six hundred ninety-six".

Divisors: 1 2 4 8 13 16 26 32 52 104 208 416 4580831 9161662 18323324 36646648 59550803 73293296 119101606 146586592 238203212 476406424 952812848 1905625696