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252533001 = 3797123973
BaseRepresentation
bin11110000110101…
…01100100001001
3122121012000011010
433003111210021
51004122024001
641020354133
76154331550
oct1703254411
9577160133
10252533001
1111a603866
12706a5949
134041b616
1425778d97
15172848d6
hexf0d5909

252533001 has 16 divisors (see below), whose sum is σ = 388782464. Its totient is φ = 142815744.

The previous prime is 252532999. The next prime is 252533003. The reversal of 252533001 is 100335252.

It is an interprime number because it is at equal distance from previous prime (252532999) and next prime (252533003).

It is not a de Polignac number, because 252533001 - 21 = 252532999 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (252533003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59950 + ... + 64023.

It is an arithmetic number, because the mean of its divisors is an integer number (24298904).

Almost surely, 2252533001 is an apocalyptic number.

252533001 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

252533001 is a deficient number, since it is larger than the sum of its proper divisors (136249463).

252533001 is a wasteful number, since it uses less digits than its factorization.

252533001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124080.

The product of its (nonzero) digits is 900, while the sum is 21.

The square root of 252533001 is about 15891.2869522893. The cubic root of 252533001 is about 632.0809670675.

Adding to 252533001 its reverse (100335252), we get a palindrome (352868253).

The spelling of 252533001 in words is "two hundred fifty-two million, five hundred thirty-three thousand, one".

Divisors: 1 3 7 21 97 291 679 2037 123973 371919 867811 2603433 12025381 36076143 84177667 252533001