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253213700 = 22522532137
BaseRepresentation
bin11110001011110…
…11110000000100
3122122110120220012
433011323300010
51004310314300
641043125352
76163165235
oct1705736004
9578416805
10253213700
1111aa29223
1270973858
13405c93bc
14258b508c
151736b435
hexf17bc04

253213700 has 18 divisors (see below), whose sum is σ = 549473946. Its totient is φ = 101285440.

The previous prime is 253213687. The next prime is 253213771. The reversal of 253213700 is 7312352.

253213700 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 1800964 + 251412736 = 1342^2 + 15856^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1265969 + ... + 1266168.

Almost surely, 2253213700 is an apocalyptic number.

253213700 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

253213700 is an abundant number, since it is smaller than the sum of its proper divisors (296260246).

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

253213700 is a wasteful number, since it uses less digits than its factorization.

253213700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2532151 (or 2532144 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 23.

The square root of 253213700 is about 15912.6899046013. The cubic root of 253213700 is about 632.6483792139.

The spelling of 253213700 in words is "two hundred fifty-three million, two hundred thirteen thousand, seven hundred".

Divisors: 1 2 4 5 10 20 25 50 100 2532137 5064274 10128548 12660685 25321370 50642740 63303425 126606850 253213700