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252141634 = 21091156613
BaseRepresentation
bin11110000011101…
…10000001000010
3122120110010022001
433001312001002
51004022013014
641004134214
76151111543
oct1701660102
9576403261
10252141634
1111a366818
127053736a
1340312444
14256b64ca
1517208974
hexf076042

252141634 has 8 divisors (see below), whose sum is σ = 381682620. Its totient is φ = 124914096.

The previous prime is 252141629. The next prime is 252141641. The reversal of 252141634 is 436141252.

It can be written as a sum of positive squares in 2 ways, for example, as 228161025 + 23980609 = 15105^2 + 4897^2 .

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

It is an alternating number because its digits alternate between even and odd.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 578089 + ... + 578524.

Almost surely, 2252141634 is an apocalyptic number.

252141634 is a deficient number, since it is larger than the sum of its proper divisors (129540986).

252141634 is a wasteful number, since it uses less digits than its factorization.

252141634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1156724.

The product of its digits is 5760, while the sum is 28.

The square root of 252141634 is about 15878.9682914225. The cubic root of 252141634 is about 631.7542724277.

Adding to 252141634 its reverse (436141252), we get a palindrome (688282886).

The spelling of 252141634 in words is "two hundred fifty-two million, one hundred forty-one thousand, six hundred thirty-four".

Divisors: 1 2 109 218 1156613 2313226 126070817 252141634