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6997031453 = 11875894719
BaseRepresentation
bin1101000010000111…
…00011101000011101
3200001122011000201002
412201003203220131
5103312220001303
63114150400045
7335251533416
oct64103435035
920048130632
106997031453
112a70707325
121433360025
138768069c9
144a53c680d
152ae42e788
hex1a10e3a1d

6997031453 has 4 divisors (see below), whose sum is σ = 7002927360. Its totient is φ = 6991135548.

The previous prime is 6997031417. The next prime is 6997031473. The reversal of 6997031453 is 3541307996.

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.

It is a cyclic number.

It is not a de Polignac number, because 6997031453 - 212 = 6997027357 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6997031398 and 6997031407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6997031473) 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, 2946173 + ... + 2948546.

It is an arithmetic number, because the mean of its divisors is an integer number (1750731840).

Almost surely, 26997031453 is an apocalyptic number.

It is an amenable number.

6997031453 is a deficient number, since it is larger than the sum of its proper divisors (5895907).

6997031453 is a wasteful number, since it uses less digits than its factorization.

6997031453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5895906.

The product of its (nonzero) digits is 612360, while the sum is 47.

The square root of 6997031453 is about 83648.2603106604. The cubic root of 6997031453 is about 1912.6607337705.

The spelling of 6997031453 in words is "six billion, nine hundred ninety-seven million, thirty-one thousand, four hundred fifty-three".

Divisors: 1 1187 5894719 6997031453