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152643361 = 1311741797
BaseRepresentation
bin10010001100100…
…10011100100001
3101122020002022211
421012102130201
5303034041421
623051402121
73532306243
oct1106223441
9348202284
10152643361
1179188242
1243153341
1325816120
14163b6093
15d6029e1
hex9192721

152643361 has 4 divisors (see below), whose sum is σ = 164385172. Its totient is φ = 140901552.

The previous prime is 152643347. The next prime is 152643367. The reversal of 152643361 is 163346251.

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 9960336 + 142683025 = 3156^2 + 11945^2 .

It is a cyclic number.

It is not a de Polignac number, because 152643361 - 25 = 152643329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (152643367) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 5870886 + ... + 5870911.

It is an arithmetic number, because the mean of its divisors is an integer number (41096293).

Almost surely, 2152643361 is an apocalyptic number.

It is an amenable number.

152643361 is a deficient number, since it is larger than the sum of its proper divisors (11741811).

152643361 is a wasteful number, since it uses less digits than its factorization.

152643361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11741810.

The product of its digits is 12960, while the sum is 31.

The square root of 152643361 is about 12354.8921889266. The cubic root of 152643361 is about 534.4322284776.

The spelling of 152643361 in words is "one hundred fifty-two million, six hundred forty-three thousand, three hundred sixty-one".

Divisors: 1 13 11741797 152643361