Search a number
-
+
253002901 = 409618589
BaseRepresentation
bin11110001010010…
…00010010010101
3122122001212201211
433011020102111
51004232043101
641034421421
76161326534
oct1705102225
9578055654
10253002901
1111a8a4908
1270891871
1340554478
142585c31b
1517328c51
hexf148495

253002901 has 4 divisors (see below), whose sum is σ = 253621900. Its totient is φ = 252383904.

The previous prime is 253002899. The next prime is 253002913. The reversal of 253002901 is 109200352.

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 156000100 + 97002801 = 12490^2 + 9849^2 .

It is a cyclic number.

It is not a de Polignac number, because 253002901 - 21 = 253002899 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253002941) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 308886 + ... + 309703.

It is an arithmetic number, because the mean of its divisors is an integer number (63405475).

Almost surely, 2253002901 is an apocalyptic number.

It is an amenable number.

253002901 is a deficient number, since it is larger than the sum of its proper divisors (618999).

253002901 is an equidigital number, since it uses as much as digits as its factorization.

253002901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 618998.

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 253002901 is about 15906.0649124791. The cubic root of 253002901 is about 632.4727717192.

The spelling of 253002901 in words is "two hundred fifty-three million, two thousand, nine hundred one".

Divisors: 1 409 618589 253002901