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252541307 = 1725757803
BaseRepresentation
bin11110000110101…
…11100101111011
3122121012102112202
433003113211323
51004122310212
641020500415
76154365014
oct1703274573
9577172482
10252541307
1111a60a027
12706aa70b
1340422335
142577c00b
15172870c2
hexf0d797b

252541307 has 8 divisors (see below), whose sum is σ = 268441776. Its totient is φ = 236756992.

The previous prime is 252541301. The next prime is 252541319. The reversal of 252541307 is 703145252.

It is a happy number.

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 252541307 - 222 = 248347003 is a prime.

It is a super-2 number, since 2×2525413072 = 127554223482536498, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 252541307.

It is not an unprimeable number, because it can be changed into a prime (252541301) 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, 24533 + ... + 33270.

It is an arithmetic number, because the mean of its divisors is an integer number (33555222).

Almost surely, 2252541307 is an apocalyptic number.

252541307 is a deficient number, since it is larger than the sum of its proper divisors (15900469).

252541307 is a wasteful number, since it uses less digits than its factorization.

252541307 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58077.

The product of its (nonzero) digits is 8400, while the sum is 29.

The square root of 252541307 is about 15891.5482883198. The cubic root of 252541307 is about 632.0878968641.

Adding to 252541307 its reverse (703145252), we get a palindrome (955686559).

The spelling of 252541307 in words is "two hundred fifty-two million, five hundred forty-one thousand, three hundred seven".

Divisors: 1 17 257 4369 57803 982651 14855371 252541307