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630168941 = 3734074999
BaseRepresentation
bin100101100011111…
…001110101101101
31121220202220021102
4211203321311231
52242310401231
6142310412445
721421230143
oct4543716555
91556686242
10630168941
112a3794286
12157061125
13a072c73c
145d99b593
153a4cbacb
hex258f9d6d

630168941 has 8 divisors (see below), whose sum is σ = 647520000. Its totient is φ = 612834768.

The previous prime is 630168907. The next prime is 630168943. The reversal of 630168941 is 149861036.

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 630168941 - 214 = 630152557 is a prime.

It is a super-2 number, since 2×6301689412 = 794225788402122962, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 630168895 and 630168904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (630168943) 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, 123560 + ... + 128558.

It is an arithmetic number, because the mean of its divisors is an integer number (80940000).

Almost surely, 2630168941 is an apocalyptic number.

It is an amenable number.

630168941 is a deficient number, since it is larger than the sum of its proper divisors (17351059).

630168941 is a wasteful number, since it uses less digits than its factorization.

630168941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8443.

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 630168941 is about 25103.1659557116. The cubic root of 630168941 is about 857.3385092562.

The spelling of 630168941 in words is "six hundred thirty million, one hundred sixty-eight thousand, nine hundred forty-one".

Divisors: 1 37 3407 4999 126059 184963 17031593 630168941