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9997480541 = 23218898829
BaseRepresentation
bin10010100111110010…
…10111001001011101
3221210202000122002002
421103321113021131
5130433323334131
64332012412045
7502514116406
oct112371271135
927722018062
109997480541
114270354114
121b30177025
13c34317779
146abaa89ad
153d7a616cb
hex253e5725d

9997480541 has 6 divisors (see below), whose sum is σ = 10451052990. Its totient is φ = 9562806968.

The previous prime is 9997480511. The next prime is 9997480579. The reversal of 9997480541 is 1450847999.

It can be written as a sum of positive squares in only one way, i.e., 8957676025 + 1039804516 = 94645^2 + 32246^2 .

It is not a de Polignac number, because 9997480541 - 218 = 9997218397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9997480511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9448886 + ... + 9449943.

It is an arithmetic number, because the mean of its divisors is an integer number (1741842165).

Almost surely, 29997480541 is an apocalyptic number.

It is an amenable number.

9997480541 is a deficient number, since it is larger than the sum of its proper divisors (453572449).

9997480541 is a wasteful number, since it uses less digits than its factorization.

9997480541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18898875 (or 18898852 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 56.

The square root of 9997480541 is about 99987.4019114408. The cubic root of 9997480541 is about 2154.2537411723.

The spelling of 9997480541 in words is "nine billion, nine hundred ninety-seven million, four hundred eighty thousand, five hundred forty-one".

Divisors: 1 23 529 18898829 434673067 9997480541