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7970248206761 = 53150382041637
BaseRepresentation
bin111001111111011011111…
…0100000010100110101001
31001012221121022010201011012
41303332313310002212221
52021041032020104021
624541251555513305
71451555115643241
oct163766764024651
931187538121135
107970248206761
1125a3188368665
12a8882bbb8835
1345a78ba94489
141d7a951a4b21
15dc4d001935b
hex73fb7d029a9

7970248206761 has 4 divisors (see below), whose sum is σ = 8120630248452. Its totient is φ = 7819866165072.

The previous prime is 7970248206731. The next prime is 7970248206803. The reversal of 7970248206761 is 1676028420797.

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 5991387048361 + 1978861158400 = 2447731^2 + 1406720^2 .

It is a de Polignac number, because none of the positive numbers 2k-7970248206761 is a prime.

It is a super-2 number, since 2×79702482067612 (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7970248206761.

It is not an unprimeable number, because it can be changed into a prime (7970248206731) 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, 75191020766 + ... + 75191020871.

It is an arithmetic number, because the mean of its divisors is an integer number (2030157562113).

Almost surely, 27970248206761 is an apocalyptic number.

It is an amenable number.

7970248206761 is a deficient number, since it is larger than the sum of its proper divisors (150382041691).

7970248206761 is a wasteful number, since it uses less digits than its factorization.

7970248206761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150382041690.

The product of its (nonzero) digits is 14224896, while the sum is 59.

The spelling of 7970248206761 in words is "seven trillion, nine hundred seventy billion, two hundred forty-eight million, two hundred six thousand, seven hundred sixty-one".

Divisors: 1 53 150382041637 7970248206761