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83321292031 = 691120580741
BaseRepresentation
bin100110110011001010…
…1100000010011111111
321222001210201012010221
41031212111200103333
52331120222321111
6102135520242211
76006531203515
oct1154625402377
9258053635127
1083321292031
1132377773a2a
1214194170367
137b1b260683
144065cd84b5
152279d7a371
hex13665604ff

83321292031 has 4 divisors (see below), whose sum is σ = 83441873464. Its totient is φ = 83200710600.

The previous prime is 83321292013. The next prime is 83321292083. The reversal of 83321292031 is 13029212338.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 83321292031 - 27 = 83321291903 is a prime.

It is a super-2 number, since 2×833212920312 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83321292011) 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, 60289680 + ... + 60291061.

It is an arithmetic number, because the mean of its divisors is an integer number (20860468366).

Almost surely, 283321292031 is an apocalyptic number.

83321292031 is a deficient number, since it is larger than the sum of its proper divisors (120581433).

83321292031 is a wasteful number, since it uses less digits than its factorization.

83321292031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120581432.

The product of its (nonzero) digits is 15552, while the sum is 34.

The spelling of 83321292031 in words is "eighty-three billion, three hundred twenty-one million, two hundred ninety-two thousand, thirty-one".

Divisors: 1 691 120580741 83321292031