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252470071 = 743838771
BaseRepresentation
bin11110000110001…
…10001100110111
3122121001210211101
433003012030313
51004113020241
641015150531
76153650230
oct1703061467
9577053741
10252470071
1111a570557
1270675447
13403c8a99
1425760087
1517270e31
hexf0c6337

252470071 has 8 divisors (see below), whose sum is σ = 295247744. Its totient is φ = 211370040.

The previous prime is 252470063. The next prime is 252470089. The reversal of 252470071 is 170074252.

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

It is not a de Polignac number, because 252470071 - 23 = 252470063 is a prime.

It is a super-2 number, since 2×2524700712 = 127482273501490082, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252470021) 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, 419085 + ... + 419686.

It is an arithmetic number, because the mean of its divisors is an integer number (36905968).

Almost surely, 2252470071 is an apocalyptic number.

252470071 is a deficient number, since it is larger than the sum of its proper divisors (42777673).

252470071 is an equidigital number, since it uses as much as digits as its factorization.

252470071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 838821.

The product of its (nonzero) digits is 3920, while the sum is 28.

The square root of 252470071 is about 15889.3068130740. The cubic root of 252470071 is about 632.0284588678.

The spelling of 252470071 in words is "two hundred fifty-two million, four hundred seventy thousand, seventy-one".

Divisors: 1 7 43 301 838771 5871397 36067153 252470071