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245153001 = 381717667
BaseRepresentation
bin11101001110010…
…11110011101001
3122002022001200210
432213023303221
51000224344001
640154251333
76034523532
oct1647136351
9562261623
10245153001
11116423095
126a126b49
133ba36462
14247b7689
15167c7dd6
hexe9cbce9

245153001 has 4 divisors (see below), whose sum is σ = 326870672. Its totient is φ = 163435332.

The previous prime is 245152997. The next prime is 245153003. The reversal of 245153001 is 100351542.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 245153001 - 22 = 245152997 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (245153003) 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, 40858831 + ... + 40858836.

It is an arithmetic number, because the mean of its divisors is an integer number (81717668).

Almost surely, 2245153001 is an apocalyptic number.

It is an amenable number.

245153001 is a deficient number, since it is larger than the sum of its proper divisors (81717671).

245153001 is an equidigital number, since it uses as much as digits as its factorization.

245153001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81717670.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 245153001 is about 15657.3625173590. The cubic root of 245153001 is about 625.8627028289.

The spelling of 245153001 in words is "two hundred forty-five million, one hundred fifty-three thousand, one".

Divisors: 1 3 81717667 245153001