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252067769 = 353714073
BaseRepresentation
bin11110000011000…
…11111110111001
3122120022100222022
433001203332321
51004012132034
641002404225
76150353312
oct1701437671
9576270868
10252067769
1111a316278
1270500675
13402b7935
1425697609
15171e1b2e
hexf063fb9

252067769 has 4 divisors (see below), whose sum is σ = 252782196. Its totient is φ = 251353344.

The previous prime is 252067757. The next prime is 252067771. The reversal of 252067769 is 967760252.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 30415225 + 221652544 = 5515^2 + 14888^2 .

It is a cyclic number.

It is not a de Polignac number, because 252067769 - 212 = 252063673 is a prime.

It is a super-2 number, since 2×2520677692 = 127076320337274722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (252067729) 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 3 ways as a sum of consecutive naturals, for example, 356684 + ... + 357389.

It is an arithmetic number, because the mean of its divisors is an integer number (63195549).

Almost surely, 2252067769 is an apocalyptic number.

It is an amenable number.

252067769 is a deficient number, since it is larger than the sum of its proper divisors (714427).

252067769 is an equidigital number, since it uses as much as digits as its factorization.

252067769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 714426.

The product of its (nonzero) digits is 317520, while the sum is 44.

The square root of 252067769 is about 15876.6422457647. The cubic root of 252067769 is about 631.6925755074.

The spelling of 252067769 in words is "two hundred fifty-two million, sixty-seven thousand, seven hundred sixty-nine".

Divisors: 1 353 714073 252067769