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253906023 = 3712090763
BaseRepresentation
bin11110010001001…
…00110001100111
3122200202202120210
433020210301213
51004444443043
641110030503
76202110540
oct1710446147
9580682523
10253906023
11120361398
1271048433
13407ac567
1425a154c7
1517456633
hexf224c67

253906023 has 8 divisors (see below), whose sum is σ = 386904448. Its totient is φ = 145089144.

The previous prime is 253906019. The next prime is 253906091. The reversal of 253906023 is 320609352.

253906023 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 253906023 - 22 = 253906019 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253907023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6045361 + ... + 6045402.

It is an arithmetic number, because the mean of its divisors is an integer number (48363056).

Almost surely, 2253906023 is an apocalyptic number.

253906023 is a deficient number, since it is larger than the sum of its proper divisors (132998425).

253906023 is a wasteful number, since it uses less digits than its factorization.

253906023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12090773.

The product of its (nonzero) digits is 9720, while the sum is 30.

The square root of 253906023 is about 15934.4288570378. The cubic root of 253906023 is about 633.2244386801.

It can be divided in two parts, 25390 and 6023, that added together give a palindrome (31413).

The spelling of 253906023 in words is "two hundred fifty-three million, nine hundred six thousand, twenty-three".

Divisors: 1 3 7 21 12090763 36272289 84635341 253906023