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253032620 = 22512651631
BaseRepresentation
bin11110001010011…
…11100010101100
3122122010101111112
433011033202230
51004234020440
641035211152
76161512301
oct1705174254
9578111445
10253032620
1111a915175
12708a6ab8
1340564b59
14258690a8
1517332965
hexf14f8ac

253032620 has 12 divisors (see below), whose sum is σ = 531368544. Its totient is φ = 101213040.

The previous prime is 253032617. The next prime is 253032623. The reversal of 253032620 is 26230352.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (253032617) and next prime (253032623).

It is not an unprimeable number, because it can be changed into a prime (253032623) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6325796 + ... + 6325835.

It is an arithmetic number, because the mean of its divisors is an integer number (44280712).

Almost surely, 2253032620 is an apocalyptic number.

253032620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

253032620 is an abundant number, since it is smaller than the sum of its proper divisors (278335924).

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

253032620 is a wasteful number, since it uses less digits than its factorization.

253032620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12651640 (or 12651638 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 23.

The square root of 253032620 is about 15906.9990884516. Note that the first 3 decimals coincide. The cubic root of 253032620 is about 632.4975352328.

Adding to 253032620 its reverse (26230352), we get a palindrome (279262972).

The spelling of 253032620 in words is "two hundred fifty-three million, thirty-two thousand, six hundred twenty".

Divisors: 1 2 4 5 10 20 12651631 25303262 50606524 63258155 126516310 253032620