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8023697421 = 315717035451
BaseRepresentation
bin1110111100011111…
…11110100000001101
3202201012000001122120
413132033332200031
5112413031304141
63404103403153
7402556205565
oct73617764015
922635001576
108023697421
1134481936a3
12167b1534b9
139ab41c46c
145618b5da5
1531e62bc66
hex1de3fe80d

8023697421 has 8 divisors (see below), whose sum is σ = 10766405664. Its totient is φ = 5315060400.

The previous prime is 8023697411. The next prime is 8023697431. The reversal of 8023697421 is 1247963208.

It is an interprime number because it is at equal distance from previous prime (8023697411) and next prime (8023697431).

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

It is not a de Polignac number, because 8023697421 - 227 = 7889479693 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8023697411) 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, 8517255 + ... + 8518196.

It is an arithmetic number, because the mean of its divisors is an integer number (1345800708).

Almost surely, 28023697421 is an apocalyptic number.

It is an amenable number.

8023697421 is a deficient number, since it is larger than the sum of its proper divisors (2742708243).

8023697421 is a wasteful number, since it uses less digits than its factorization.

8023697421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17035611.

The product of its (nonzero) digits is 145152, while the sum is 42.

The square root of 8023697421 is about 89575.0937537885. The cubic root of 8023697421 is about 2001.9728383978.

The spelling of 8023697421 in words is "eight billion, twenty-three million, six hundred ninety-seven thousand, four hundred twenty-one".

Divisors: 1 3 157 471 17035451 51106353 2674565807 8023697421