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83878338 = 2313979723
BaseRepresentation
bin1001111111111…
…10000111000010
312211211110110010
410333332013002
5132433101323
612153445350
72035645155
oct477760702
9184743403
1083878338
1143390045
1224110856
13144ba76b
14b1d5c9c
15756cc93
hex4ffe1c2

83878338 has 8 divisors (see below), whose sum is σ = 167756688. Its totient is φ = 27959444.

The previous prime is 83878321. The next prime is 83878339. The reversal of 83878338 is 83387838.

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

83878338 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (83878339) 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, 6989856 + ... + 6989867.

It is an arithmetic number, because the mean of its divisors is an integer number (20969586).

Almost surely, 283878338 is an apocalyptic number.

83878338 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

83878338 is a wasteful number, since it uses less digits than its factorization.

83878338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13979728.

The product of its digits is 774144, while the sum is 48.

The square root of 83878338 is about 9158.5117786680. The cubic root of 83878338 is about 437.7403749002.

The spelling of 83878338 in words is "eighty-three million, eight hundred seventy-eight thousand, three hundred thirty-eight".

Divisors: 1 2 3 6 13979723 27959446 41939169 83878338