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83278196 = 2245745557
BaseRepresentation
bin1001111011010…
…11100101110100
312210200222012122
410331223211310
5132304400241
612132535112
72030565401
oct475534564
9183628178
1083278196
1143010161
1223a81498
131433a551
14b0bb2a8
1574a004b
hex4f6b974

83278196 has 12 divisors (see below), whose sum is σ = 146058948. Its totient is φ = 41547072.

The previous prime is 83278171. The next prime is 83278199. The reversal of 83278196 is 69187238.

It can be written as a sum of positive squares in 2 ways, for example, as 55294096 + 27984100 = 7436^2 + 5290^2 .

It is a hoax number, since the sum of its digits (44) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83278199) 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, 20951 + ... + 24606.

It is an arithmetic number, because the mean of its divisors is an integer number (12171579).

Almost surely, 283278196 is an apocalyptic number.

It is an amenable number.

83278196 is a deficient number, since it is larger than the sum of its proper divisors (62780752).

83278196 is a wasteful number, since it uses less digits than its factorization.

83278196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46018 (or 46016 counting only the distinct ones).

The product of its digits is 145152, while the sum is 44.

The square root of 83278196 is about 9125.6887959211. The cubic root of 83278196 is about 436.6938773194.

The spelling of 83278196 in words is "eighty-three million, two hundred seventy-eight thousand, one hundred ninety-six".

Divisors: 1 2 4 457 914 1828 45557 91114 182228 20819549 41639098 83278196