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83408051 = 233626437
BaseRepresentation
bin1001111100010…
…11010010110011
312210221120100002
410332023102303
5132323024201
612135420215
72031646106
oct476132263
9183846302
1083408051
1143099781
1223b2466b
131438469c
14b11273d
1574c876b
hex4f8b4b3

83408051 has 4 divisors (see below), whose sum is σ = 87034512. Its totient is φ = 79781592.

The previous prime is 83408029. The next prime is 83408057. The reversal of 83408051 is 15080438.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15080438 = 27540219.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-83408051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83408057) 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, 1813196 + ... + 1813241.

It is an arithmetic number, because the mean of its divisors is an integer number (21758628).

Almost surely, 283408051 is an apocalyptic number.

83408051 is a deficient number, since it is larger than the sum of its proper divisors (3626461).

83408051 is a wasteful number, since it uses less digits than its factorization.

83408051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3626460.

The product of its (nonzero) digits is 3840, while the sum is 29.

The square root of 83408051 is about 9132.8008299754. The cubic root of 83408051 is about 436.9207371598.

Adding to 83408051 its reverse (15080438), we get a palindrome (98488489).

The spelling of 83408051 in words is "eighty-three million, four hundred eight thousand, fifty-one".

Divisors: 1 23 3626437 83408051