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252416487 = 3244134469
BaseRepresentation
bin11110000101110…
…01000111100111
3122120222002022210
433002321013213
51004104311422
641014054503
76153335061
oct1702710747
9576862283
10252416487
1111a534274
127064a433
13403aa58b
1425748731
151726010c
hexf0b91e7

252416487 has 8 divisors (see below), whose sum is σ = 336702960. Its totient is φ = 168203840.

The previous prime is 252416471. The next prime is 252416491. The reversal of 252416487 is 784614252.

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 252416487 - 24 = 252416471 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252416447) 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, 9912 + ... + 24557.

It is an arithmetic number, because the mean of its divisors is an integer number (42087870).

Almost surely, 2252416487 is an apocalyptic number.

252416487 is a deficient number, since it is larger than the sum of its proper divisors (84286473).

252416487 is a wasteful number, since it uses less digits than its factorization.

252416487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36913.

The product of its digits is 107520, while the sum is 39.

The square root of 252416487 is about 15887.6205581579. The cubic root of 252416487 is about 631.9837420042.

The spelling of 252416487 in words is "two hundred fifty-two million, four hundred sixteen thousand, four hundred eighty-seven".

Divisors: 1 3 2441 7323 34469 103407 84138829 252416487