Search a number
-
+
253379892 = 22321114991
BaseRepresentation
bin11110001101001…
…00010100110100
3122122210000212110
433012210110310
51004331124032
641050451020
76164456613
oct1706442464
9578700773
10253379892
11120032077
1270a33a70
1340656c3c
142591987a
15173a07cc
hexf1a4534

253379892 has 12 divisors (see below), whose sum is σ = 591219776. Its totient is φ = 84459960.

The previous prime is 253379887. The next prime is 253379899. The reversal of 253379892 is 298973352.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253379899) by changing a digit.

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, 10557484 + ... + 10557507.

Almost surely, 2253379892 is an apocalyptic number.

It is an amenable number.

253379892 is an abundant number, since it is smaller than the sum of its proper divisors (337839884).

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

253379892 is a wasteful number, since it uses less digits than its factorization.

253379892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21114998 (or 21114996 counting only the distinct ones).

The product of its digits is 816480, while the sum is 48.

The square root of 253379892 is about 15917.9110438525. The cubic root of 253379892 is about 632.7867578579.

The spelling of 253379892 in words is "two hundred fifty-three million, three hundred seventy-nine thousand, eight hundred ninety-two".

Divisors: 1 2 3 4 6 12 21114991 42229982 63344973 84459964 126689946 253379892