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252383421 = 3131642197
BaseRepresentation
bin11110000101100…
…01000010111101
3122120220101222010
433002301002331
51004102232141
641013241433
76153136503
oct1702610275
9576811863
10252383421
1111a511444
1270633279
1340398504
142573a673
1517255416
hexf0b10bd

252383421 has 8 divisors (see below), whose sum is σ = 339080544. Its totient is φ = 166970960.

The previous prime is 252383407. The next prime is 252383423. The reversal of 252383421 is 124383252.

252383421 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 a cyclic number.

It is not a de Polignac number, because 252383421 - 26 = 252383357 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252383423) 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, 320706 + ... + 321491.

It is an arithmetic number, because the mean of its divisors is an integer number (42385068).

Almost surely, 2252383421 is an apocalyptic number.

It is an amenable number.

252383421 is a deficient number, since it is larger than the sum of its proper divisors (86697123).

252383421 is a wasteful number, since it uses less digits than its factorization.

252383421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 642331.

The product of its digits is 11520, while the sum is 30.

The square root of 252383421 is about 15886.5799025467. The cubic root of 252383421 is about 631.9561446429.

The spelling of 252383421 in words is "two hundred fifty-two million, three hundred eighty-three thousand, four hundred twenty-one".

Divisors: 1 3 131 393 642197 1926591 84127807 252383421