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83804957 = 5911711213
BaseRepresentation
bin1001111111011…
…00001100011101
312211200201210022
410333230030131
5132423224312
612152121525
72035221215
oct477541435
9184621708
1083804957
114333a9a5
12240962a5
1314493242
14b1b7245
157556172
hex4fec31d

83804957 has 8 divisors (see below), whose sum is σ = 85368480. Its totient is φ = 82246320.

The previous prime is 83804947. The next prime is 83804999. The reversal of 83804957 is 75940838.

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

It is a cyclic number.

It is not a de Polignac number, because 83804957 - 210 = 83803933 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83804927) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68483 + ... + 69695.

It is an arithmetic number, because the mean of its divisors is an integer number (10671060).

Almost surely, 283804957 is an apocalyptic number.

It is an amenable number.

83804957 is a deficient number, since it is larger than the sum of its proper divisors (1563523).

83804957 is a wasteful number, since it uses less digits than its factorization.

83804957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2443.

The product of its (nonzero) digits is 241920, while the sum is 44.

The square root of 83804957 is about 9154.5047381057. The cubic root of 83804957 is about 437.6126852049.

The spelling of 83804957 in words is "eighty-three million, eight hundred four thousand, nine hundred fifty-seven".

Divisors: 1 59 1171 1213 69089 71567 1420423 83804957