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4972108349 = 13382469873
BaseRepresentation
bin1001010000101110…
…00101101000111101
3110211111220021102002
410220113011220331
540140324431344
62141213312045
7234133136465
oct45027055075
913744807362
104972108349
11212169765a
12b69195625
13613144460
143524c0ba5
151e179744e
hex1285c5a3d

4972108349 has 4 divisors (see below), whose sum is σ = 5354578236. Its totient is φ = 4589638464.

The previous prime is 4972108313. The next prime is 4972108373. The reversal of 4972108349 is 9438012794.

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 2705872324 + 2266236025 = 52018^2 + 47605^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-4972108349 is a prime.

It is a super-2 number, since 2×49721083492 = 49443722868391011602, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4972138349) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 191234924 + ... + 191234949.

It is an arithmetic number, because the mean of its divisors is an integer number (1338644559).

Almost surely, 24972108349 is an apocalyptic number.

It is an amenable number.

4972108349 is a deficient number, since it is larger than the sum of its proper divisors (382469887).

4972108349 is a wasteful number, since it uses less digits than its factorization.

4972108349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 382469886.

The product of its (nonzero) digits is 435456, while the sum is 47.

The square root of 4972108349 is about 70513.1785484104. The cubic root of 4972108349 is about 1706.7904125047.

The spelling of 4972108349 in words is "four billion, nine hundred seventy-two million, one hundred eight thousand, three hundred forty-nine".

Divisors: 1 13 382469873 4972108349