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631492058 = 2495763697
BaseRepresentation
bin100101101000111…
…100110111011010
31122000021010020202
4211220330313122
52243130221213
6142355022202
721435410501
oct4550746732
91560233222
10631492058
112a450836a
1215759a962
13a0aa3a52
145dc23838
153a68db58
hex25a3cdda

631492058 has 8 divisors (see below), whose sum is σ = 947444052. Its totient is φ = 315677376.

The previous prime is 631492051. The next prime is 631492067. The reversal of 631492058 is 850294136.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 625650169 + 5841889 = 25013^2 + 2417^2 .

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

It is not an unprimeable number, because it can be changed into a prime (631492051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21935 + ... + 41762.

Almost surely, 2631492058 is an apocalyptic number.

631492058 is a deficient number, since it is larger than the sum of its proper divisors (315951994).

631492058 is a wasteful number, since it uses less digits than its factorization.

631492058 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68656.

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 631492058 is about 25129.5057253421. The cubic root of 631492058 is about 857.9381189263.

The spelling of 631492058 in words is "six hundred thirty-one million, four hundred ninety-two thousand, fifty-eight".

Divisors: 1 2 4957 9914 63697 127394 315746029 631492058