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7973002913 = 37921036947
BaseRepresentation
bin1110110110011101…
…00101111010100001
3202120122121111212012
413123032211322201
5112312042043123
63355053042305
7401402256311
oct73316457241
922518544765
107973002913
113421609107
121666186395
139a0a7cc05
14558c7b441
15319e66378
hex1db3a5ea1

7973002913 has 4 divisors (see below), whose sum is σ = 7994040240. Its totient is φ = 7951965588.

The previous prime is 7973002897. The next prime is 7973002931. The reversal of 7973002913 is 3192003797.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3192003797 = 17318450889.

It is a cyclic number.

It is not a de Polignac number, because 7973002913 - 24 = 7973002897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7973002943) 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 3 ways as a sum of consecutive naturals, for example, 10518095 + ... + 10518852.

It is an arithmetic number, because the mean of its divisors is an integer number (1998510060).

Almost surely, 27973002913 is an apocalyptic number.

It is an amenable number.

7973002913 is a deficient number, since it is larger than the sum of its proper divisors (21037327).

7973002913 is a wasteful number, since it uses less digits than its factorization.

7973002913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21037326.

The product of its (nonzero) digits is 71442, while the sum is 41.

The square root of 7973002913 is about 89291.6732568049. The cubic root of 7973002913 is about 1997.7477072909.

The spelling of 7973002913 in words is "seven billion, nine hundred seventy-three million, two thousand, nine hundred thirteen".

Divisors: 1 379 21036947 7973002913