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253002040 = 2356325051
BaseRepresentation
bin11110001010010…
…00000100111000
3122122001211112221
433011020010320
51004232031130
641034413424
76161324164
oct1705100470
9578054487
10253002040
1111a8a41a5
1270891274
1340553c65
142585bca4
151732887a
hexf148138

253002040 has 16 divisors (see below), whose sum is σ = 569254680. Its totient is φ = 101200800.

The previous prime is 253002023. The next prime is 253002053. The reversal of 253002040 is 40200352.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3162486 + ... + 3162565.

Almost surely, 2253002040 is an apocalyptic number.

253002040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

253002040 is an abundant number, since it is smaller than the sum of its proper divisors (316252640).

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

253002040 is a wasteful number, since it uses less digits than its factorization.

253002040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6325062 (or 6325058 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 16.

The square root of 253002040 is about 15906.0378473082. The cubic root of 253002040 is about 632.4720542575.

Adding to 253002040 its reverse (40200352), we get a palindrome (293202392).

It can be divided in two parts, 2 and 53002040, that multiplied together give a triangular number (106004080 = T14560).

The spelling of 253002040 in words is "two hundred fifty-three million, two thousand, forty".

Divisors: 1 2 4 5 8 10 20 40 6325051 12650102 25300204 31625255 50600408 63250510 126501020 253002040