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253052330 = 2525305233
BaseRepresentation
bin11110001010101…
…00010110101010
3122122011101112112
433011110112222
51004240133310
641035442322
76161623616
oct1705242652
9578141475
10253052330
1111a928a63
12708b63a2
1340570b0b
1425872346
1517338705
hexf1545aa

253052330 has 8 divisors (see below), whose sum is σ = 455494212. Its totient is φ = 101220928.

The previous prime is 253052323. The next prime is 253052333. The reversal of 253052330 is 33250352.

253052330 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 216413521 + 36638809 = 14711^2 + 6053^2 .

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 253052296 and 253052305.

It is not an unprimeable number, because it can be changed into a prime (253052333) 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, 12652607 + ... + 12652626.

Almost surely, 2253052330 is an apocalyptic number.

253052330 is a deficient number, since it is larger than the sum of its proper divisors (202441882).

253052330 is a wasteful number, since it uses less digits than its factorization.

253052330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25305240.

The product of its (nonzero) digits is 2700, while the sum is 23.

The square root of 253052330 is about 15907.6186149907. The cubic root of 253052330 is about 632.5139576250.

The spelling of 253052330 in words is "two hundred fifty-three million, fifty-two thousand, three hundred thirty".

Divisors: 1 2 5 10 25305233 50610466 126526165 253052330