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83409974 = 2291438103
BaseRepresentation
bin1001111100010…
…11110000110110
312210221122222022
410332023300312
5132323104344
612135433142
72031654524
oct476136066
9183848868
1083409974
11430a016a
1223b257b2
131438551b
14b113314
1574c90ee
hex4f8bc36

83409974 has 8 divisors (see below), whose sum is σ = 129429360. Its totient is φ = 40266856.

The previous prime is 83409971. The next prime is 83409979. The reversal of 83409974 is 47990438.

83409974 = T1341 + T1342 + ... + T1427.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83409971) 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, 718994 + ... + 719109.

It is an arithmetic number, because the mean of its divisors is an integer number (16178670).

Almost surely, 283409974 is an apocalyptic number.

83409974 is a deficient number, since it is larger than the sum of its proper divisors (46019386).

83409974 is a wasteful number, since it uses less digits than its factorization.

83409974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1438134.

The product of its (nonzero) digits is 217728, while the sum is 44.

The square root of 83409974 is about 9132.9061092294. The cubic root of 83409974 is about 436.9240949177.

The spelling of 83409974 in words is "eighty-three million, four hundred nine thousand, nine hundred seventy-four".

Divisors: 1 2 29 58 1438103 2876206 41704987 83409974