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4907949961 = 19732487557
BaseRepresentation
bin1001001001000100…
…10101111110001001
3110200001011200122111
410210202111332021
540022413344321
62131002222321
7232423613005
oct44442257611
913601150574
104907949961
1120994564a2
12b4b7b49a1
13602a6c805
14347b7d705
151dad225e1
hex124895f89

4907949961 has 4 divisors (see below), whose sum is σ = 4910439492. Its totient is φ = 4905460432.

The previous prime is 4907949913. The next prime is 4907950001. The reversal of 4907949961 is 1699497094.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 580810000 + 4327139961 = 24100^2 + 65781^2 .

It is a cyclic number.

It is not a de Polignac number, because 4907949961 - 225 = 4874395529 is a prime.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4907949896 and 4907949905.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1241806 + ... + 1245751.

It is an arithmetic number, because the mean of its divisors is an integer number (1227609873).

Almost surely, 24907949961 is an apocalyptic number.

It is an amenable number.

4907949961 is a deficient number, since it is larger than the sum of its proper divisors (2489531).

4907949961 is a wasteful number, since it uses less digits than its factorization.

4907949961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2489530.

The product of its (nonzero) digits is 4408992, while the sum is 58.

The square root of 4907949961 is about 70056.7624216249. The cubic root of 4907949961 is about 1699.4173275330.

The spelling of 4907949961 in words is "four billion, nine hundred seven million, nine hundred forty-nine thousand, nine hundred sixty-one".

Divisors: 1 1973 2487557 4907949961