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253925020 = 22547270133
BaseRepresentation
bin11110010001010…
…01011010011100
3122200210201122101
433020221122130
51010001100040
641110254444
76202220116
oct1710513234
9580721571
10253925020
11120374698
1271057424
13407b80bb
1425a1c3b6
151745c09a
hexf22969c

253925020 has 24 divisors (see below), whose sum is σ = 544590144. Its totient is φ = 99408576.

The previous prime is 253925011. The next prime is 253925027. The reversal of 253925020 is 20529352.

253925020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 253925020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253925027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 134127 + ... + 136006.

It is an arithmetic number, because the mean of its divisors is an integer number (22691256).

Almost surely, 2253925020 is an apocalyptic number.

253925020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

253925020 is an abundant number, since it is smaller than the sum of its proper divisors (290665124).

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

253925020 is a wasteful number, since it uses less digits than its factorization.

253925020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270189 (or 270187 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 253925020 is about 15935.0249450699. The cubic root of 253925020 is about 633.2402306971.

The spelling of 253925020 in words is "two hundred fifty-three million, nine hundred twenty-five thousand, twenty".

Divisors: 1 2 4 5 10 20 47 94 188 235 470 940 270133 540266 1080532 1350665 2701330 5402660 12696251 25392502 50785004 63481255 126962510 253925020