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252145349 = 1375033659
BaseRepresentation
bin11110000011101…
…10111011000101
3122120110022101122
433001312323011
51004022122344
641004203325
76151125431
oct1701667305
9576408348
10252145349
1111a369595
1270539545
1340314041
14256b79c1
1517209aee
hexf076ec5

252145349 has 8 divisors (see below), whose sum is σ = 254560320. Its totient is φ = 249738976.

The previous prime is 252145337. The next prime is 252145363. The reversal of 252145349 is 943541252.

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 252145349 - 216 = 252079813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252145549) 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, 67082 + ... + 70740.

It is an arithmetic number, because the mean of its divisors is an integer number (31820040).

Almost surely, 2252145349 is an apocalyptic number.

It is an amenable number.

252145349 is a deficient number, since it is larger than the sum of its proper divisors (2414971).

252145349 is a wasteful number, since it uses less digits than its factorization.

252145349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4299.

The product of its digits is 43200, while the sum is 35.

The square root of 252145349 is about 15879.0852696243. The cubic root of 252145349 is about 631.7573751225.

The spelling of 252145349 in words is "two hundred fifty-two million, one hundred forty-five thousand, three hundred forty-nine".

Divisors: 1 137 503 3659 68911 501283 1840477 252145349