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83349392 = 2472412593
BaseRepresentation
bin1001111011111…
…00111110010000
312210211120212112
410331330332100
5132314140032
612134244452
72031313100
oct475747620
9183746775
1083349392
11430596a5
1223ab6728
1314363a89
14b0d9200
1574b61b2
hex4f7cf90

83349392 has 60 divisors (see below), whose sum is σ = 192511116. Its totient is φ = 34836480.

The previous prime is 83349391. The next prime is 83349397. The reversal of 83349392 is 29394338.

It can be written as a sum of positive squares in 2 ways, for example, as 23193856 + 60155536 = 4816^2 + 7756^2 .

It is a super-2 number, since 2×833493922 = 13894242293539328, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is not an unprimeable number, because it can be changed into a prime (83349391) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30848 + ... + 33440.

Almost surely, 283349392 is an apocalyptic number.

83349392 is a gapful number since it is divisible by the number (82) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 83349392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96255558).

83349392 is an abundant number, since it is smaller than the sum of its proper divisors (109161724).

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

83349392 is a wasteful number, since it uses less digits than its factorization.

83349392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2656 (or 2643 counting only the distinct ones).

The product of its digits is 139968, while the sum is 41.

The square root of 83349392 is about 9129.5888187804. The cubic root of 83349392 is about 436.8182876411.

The spelling of 83349392 in words is "eighty-three million, three hundred forty-nine thousand, three hundred ninety-two".

Divisors: 1 2 4 7 8 14 16 28 41 49 56 82 98 112 164 196 287 328 392 574 656 784 1148 2009 2296 2593 4018 4592 5186 8036 10372 16072 18151 20744 32144 36302 41488 72604 106313 127057 145208 212626 254114 290416 425252 508228 744191 850504 1016456 1488382 1701008 2032912 2976764 5209337 5953528 10418674 11907056 20837348 41674696 83349392