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83840801 = 117621891
BaseRepresentation
bin1001111111101…
…00111100100001
312211202112221212
410333310330201
5132430401201
612152555505
72035430552
oct477647441
9184675855
1083840801
1143364920
12240b2b95
13144a6655
14b1c6329
157561abb
hex4ff4f21

83840801 has 4 divisors (see below), whose sum is σ = 91462704. Its totient is φ = 76218900.

The previous prime is 83840797. The next prime is 83840803. The reversal of 83840801 is 10804838.

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 83840801 - 22 = 83840797 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83840803) 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, 3810935 + ... + 3810956.

It is an arithmetic number, because the mean of its divisors is an integer number (22865676).

Almost surely, 283840801 is an apocalyptic number.

It is an amenable number.

83840801 is a deficient number, since it is larger than the sum of its proper divisors (7621903).

83840801 is a wasteful number, since it uses less digits than its factorization.

83840801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7621902.

The product of its (nonzero) digits is 6144, while the sum is 32.

The square root of 83840801 is about 9156.4622535125. The cubic root of 83840801 is about 437.6750663729.

The spelling of 83840801 in words is "eighty-three million, eight hundred forty thousand, eight hundred one".

Divisors: 1 11 7621891 83840801