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253045828 = 22715435857
BaseRepresentation
bin11110001010100…
…10110001000100
3122122011001121201
433011102301010
51004234431303
641035352244
76161565640
oct1705226104
9578131551
10253045828
1111a924092
12708b2684
134056ab79
142586dc20
151733681d
hexf152c44

253045828 has 24 divisors (see below), whose sum is σ = 506506112. Its totient is φ = 108359424.

The previous prime is 253045733. The next prime is 253045829. The reversal of 253045828 is 828540352.

It is not an unprimeable number, because it can be changed into a prime (253045829) 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, 40276 + ... + 46132.

Almost surely, 2253045828 is an apocalyptic number.

253045828 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

253045828 is an abundant number, since it is smaller than the sum of its proper divisors (253460284).

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

253045828 is a wasteful number, since it uses less digits than its factorization.

253045828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7411 (or 7409 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 37.

The square root of 253045828 is about 15907.4142461935. The cubic root of 253045828 is about 632.5085402462.

The spelling of 253045828 in words is "two hundred fifty-three million, forty-five thousand, eight hundred twenty-eight".

Divisors: 1 2 4 7 14 28 1543 3086 5857 6172 10801 11714 21602 23428 40999 43204 81998 163996 9037351 18074702 36149404 63261457 126522914 253045828