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252489190 = 2525248919
BaseRepresentation
bin11110000110010…
…10110111100110
3122121002210001111
433003022313212
51004114123230
641015415234
76154060042
oct1703126746
9577083044
10252489190
1111a583958
127068451a
13404046b5
1425767022
151727692a
hexf0cade6

252489190 has 8 divisors (see below), whose sum is σ = 454480560. Its totient is φ = 100995672.

The previous prime is 252489169. The next prime is 252489199. The reversal of 252489190 is 91984252.

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

It is a super-2 number, since 2×2524891902 = 127501582133712200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252489199) 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, 12624450 + ... + 12624469.

It is an arithmetic number, because the mean of its divisors is an integer number (56810070).

Almost surely, 2252489190 is an apocalyptic number.

252489190 is a deficient number, since it is larger than the sum of its proper divisors (201991370).

252489190 is a wasteful number, since it uses less digits than its factorization.

252489190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25248926.

The product of its (nonzero) digits is 51840, while the sum is 40.

The square root of 252489190 is about 15889.9084327129. The cubic root of 252489190 is about 632.0444125041.

The spelling of 252489190 in words is "two hundred fifty-two million, four hundred eighty-nine thousand, one hundred ninety".

Divisors: 1 2 5 10 25248919 50497838 126244595 252489190