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6993112621 = 111933459869
BaseRepresentation
bin1101000001101001…
…00110111000101101
3200001100202221002011
412200310212320231
5103310214100441
63113530401221
7335203322305
oct64064467055
920040687064
106993112621
112a69480020
121431b90211
13875a64081
144a4a86605
152ade08581
hex1a0d26e2d

6993112621 has 8 divisors (see below), whose sum is σ = 8030368800. Its totient is φ = 6022776240.

The previous prime is 6993112619. The next prime is 6993112631. The reversal of 6993112621 is 1262113996.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6993112621 - 21 = 6993112619 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 (6993112631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16729726 + ... + 16730143.

It is an arithmetic number, because the mean of its divisors is an integer number (1003796100).

Almost surely, 26993112621 is an apocalyptic number.

It is an amenable number.

6993112621 is a deficient number, since it is larger than the sum of its proper divisors (1037256179).

6993112621 is a wasteful number, since it uses less digits than its factorization.

6993112621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33459899.

The product of its digits is 34992, while the sum is 40.

The square root of 6993112621 is about 83624.8325618653. The cubic root of 6993112621 is about 1912.3035920363.

The spelling of 6993112621 in words is "six billion, nine hundred ninety-three million, one hundred twelve thousand, six hundred twenty-one".

Divisors: 1 11 19 209 33459869 368058559 635737511 6993112621