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252748070 = 25191330253
BaseRepresentation
bin11110001000010…
…10000100100110
3122121120221011122
433010022010212
51004200414240
641025133542
76156215561
oct1704120446
9577527148
10252748070
1111a740403
127078a2b2
1340495493
14257d34d8
15172c84b5
hexf10a126

252748070 has 16 divisors (see below), whose sum is σ = 478891440. Its totient is φ = 95778144.

The previous prime is 252748063. The next prime is 252748087. The reversal of 252748070 is 70847252.

It is a self number, because there is not a number n which added to its sum of digits gives 252748070.

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 7 ways as a sum of consecutive naturals, for example, 664937 + ... + 665316.

It is an arithmetic number, because the mean of its divisors is an integer number (29930715).

Almost surely, 2252748070 is an apocalyptic number.

252748070 is a deficient number, since it is larger than the sum of its proper divisors (226143370).

252748070 is a wasteful number, since it uses less digits than its factorization.

252748070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1330279.

The product of its (nonzero) digits is 31360, while the sum is 35.

The square root of 252748070 is about 15898.0523964415. The cubic root of 252748070 is about 632.2603527953.

The spelling of 252748070 in words is "two hundred fifty-two million, seven hundred forty-eight thousand, seventy".

Divisors: 1 2 5 10 19 38 95 190 1330253 2660506 6651265 13302530 25274807 50549614 126374035 252748070