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252446143 = 4150312241
BaseRepresentation
bin11110000110000…
…00010110111111
3122121000121000011
433003000112333
51004111234033
641014444051
76153520405
oct1703002677
9577017004
10252446143
1111a554584
1270663627
13403bac21
1425755475
1517268ccd
hexf0c05bf

252446143 has 8 divisors (see below), whose sum is σ = 259138656. Its totient is φ = 245779200.

The previous prime is 252446119. The next prime is 252446147. The reversal of 252446143 is 341644252.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 252446143 - 25 = 252446111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252446147) 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, 14503 + ... + 26743.

It is an arithmetic number, because the mean of its divisors is an integer number (32392332).

Almost surely, 2252446143 is an apocalyptic number.

252446143 is a deficient number, since it is larger than the sum of its proper divisors (6692513).

252446143 is a wasteful number, since it uses less digits than its factorization.

252446143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12785.

The product of its digits is 23040, while the sum is 31.

The square root of 252446143 is about 15888.5538360167. The cubic root of 252446143 is about 632.0084912802.

The spelling of 252446143 in words is "two hundred fifty-two million, four hundred forty-six thousand, one hundred forty-three".

Divisors: 1 41 503 12241 20623 501881 6157223 252446143