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252905080 = 2356322627
BaseRepresentation
bin11110001001100…
…00011001111000
3122121212220112211
433010300121320
51004220430310
641032344504
76160441411
oct1704603170
9577786484
10252905080
1111a83836a
1270845134
134051ba9c
1425834808
1517309c8a
hexf130678

252905080 has 16 divisors (see below), whose sum is σ = 569036520. Its totient is φ = 101162016.

The previous prime is 252905071. The next prime is 252905083. The reversal of 252905080 is 80509252.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252905083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3161274 + ... + 3161353.

Almost surely, 2252905080 is an apocalyptic number.

252905080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

252905080 is an abundant number, since it is smaller than the sum of its proper divisors (316131440).

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

252905080 is a wasteful number, since it uses less digits than its factorization.

252905080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6322638 (or 6322634 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 31.

The square root of 252905080 is about 15902.9896560364. The cubic root of 252905080 is about 632.3912481554.

The spelling of 252905080 in words is "two hundred fifty-two million, nine hundred five thousand, eighty".

Divisors: 1 2 4 5 8 10 20 40 6322627 12645254 25290508 31613135 50581016 63226270 126452540 252905080