Search a number
-
+
23471892 = 2232651997
BaseRepresentation
bin101100110001…
…0011100010100
31122011111101100
41121202130110
522002100032
62155030100
7403336113
oct131423424
948144340
1023471892
1112281864
127a3b330
134b2a7c2
14318dc7a
1520d997c
hex1662714

23471892 has 18 divisors (see below), whose sum is σ = 59331818. Its totient is φ = 7823952.

The previous prime is 23471879. The next prime is 23471923. The reversal of 23471892 is 29817432.

It can be written as a sum of positive squares in only one way, i.e., 20034576 + 3437316 = 4476^2 + 1854^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 651997 = 23471892 / (2 + 3 + 4 + 7 + 1 + 8 + 9 + 2).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 325963 + ... + 326034.

Almost surely, 223471892 is an apocalyptic number.

It is an amenable number.

23471892 is an abundant number, since it is smaller than the sum of its proper divisors (35859926).

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

23471892 is a wasteful number, since it uses less digits than its factorization.

23471892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 652007 (or 652002 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 23471892 is about 4844.7798711603. The cubic root of 23471892 is about 286.3184709364.

The spelling of 23471892 in words is "twenty-three million, four hundred seventy-one thousand, eight hundred ninety-two".

Divisors: 1 2 3 4 6 9 12 18 36 651997 1303994 1955991 2607988 3911982 5867973 7823964 11735946 23471892