Search a number
-
+
253625790 = 23511768563
BaseRepresentation
bin11110001111000…
…00010110111110
3122200020112011210
433013200112332
51004412011130
641100025250
76166532535
oct1707402676
9580215153
10253625790
1112018a8a0
1270b32226
1340711b42
142598131c
15173ed5b0
hexf1e05be

253625790 has 32 divisors (see below), whose sum is σ = 664039296. Its totient is φ = 61484960.

The previous prime is 253625767. The next prime is 253625797. The reversal of 253625790 is 97526352.

253625790 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253625797) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 383952 + ... + 384611.

It is an arithmetic number, because the mean of its divisors is an integer number (20751228).

Almost surely, 2253625790 is an apocalyptic number.

253625790 is an abundant number, since it is smaller than the sum of its proper divisors (410413506).

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

253625790 is a wasteful number, since it uses less digits than its factorization.

253625790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 768584.

The product of its (nonzero) digits is 113400, while the sum is 39.

The square root of 253625790 is about 15925.6331114339. The cubic root of 253625790 is about 632.9913922097.

The spelling of 253625790 in words is "two hundred fifty-three million, six hundred twenty-five thousand, seven hundred ninety".

Divisors: 1 2 3 5 6 10 11 15 22 30 33 55 66 110 165 330 768563 1537126 2305689 3842815 4611378 7685630 8454193 11528445 16908386 23056890 25362579 42270965 50725158 84541930 126812895 253625790