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252755870 = 25157199809
BaseRepresentation
bin11110001000010…
…11111110011110
3122121121022212112
433010023332132
51004201141440
641025234022
76156250403
oct1704137636
9577538775
10252755870
1111a746254
1270792912
1340498bb3
14257d62aa
15172ca965
hexf10bf9e

252755870 has 32 divisors (see below), whose sum is σ = 460728000. Its totient is φ = 99830016.

The previous prime is 252755861. The next prime is 252755873. The reversal of 252755870 is 78557252.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252755873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 312026 + ... + 312834.

It is an arithmetic number, because the mean of its divisors is an integer number (14397750).

Almost surely, 2252755870 is an apocalyptic number.

252755870 is a deficient number, since it is larger than the sum of its proper divisors (207972130).

252755870 is a wasteful number, since it uses less digits than its factorization.

252755870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1172.

The product of its (nonzero) digits is 196000, while the sum is 41.

The square root of 252755870 is about 15898.2977076164. The cubic root of 252755870 is about 632.2668567421.

The spelling of 252755870 in words is "two hundred fifty-two million, seven hundred fifty-five thousand, eight hundred seventy".

Divisors: 1 2 5 10 157 199 314 398 785 809 995 1570 1618 1990 4045 8090 31243 62486 127013 156215 160991 254026 312430 321982 635065 804955 1270130 1609910 25275587 50551174 126377935 252755870