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83386842 = 23711180491
BaseRepresentation
bin1001111100001…
…10000111011010
312210220111020120
410332012013122
5132321334332
612135134110
72031530220
oct476060732
9183814216
1083386842
1143084850
1223b14336
1314377b36
14b108b10
1574c232c
hex4f861da

83386842 has 32 divisors (see below), whose sum is σ = 207926784. Its totient is φ = 21658800.

The previous prime is 83386783. The next prime is 83386879. The reversal of 83386842 is 24868338.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 83386794 and 83386803.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 89784 + ... + 90707.

It is an arithmetic number, because the mean of its divisors is an integer number (6497712).

Almost surely, 283386842 is an apocalyptic number.

83386842 is an abundant number, since it is smaller than the sum of its proper divisors (124539942).

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

83386842 is a wasteful number, since it uses less digits than its factorization.

83386842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180514.

The product of its digits is 221184, while the sum is 42.

The square root of 83386842 is about 9131.6396118112. The cubic root of 83386842 is about 436.8837006173.

The spelling of 83386842 in words is "eighty-three million, three hundred eighty-six thousand, eight hundred forty-two".

Divisors: 1 2 3 6 7 11 14 21 22 33 42 66 77 154 231 462 180491 360982 541473 1082946 1263437 1985401 2526874 3790311 3970802 5956203 7580622 11912406 13897807 27795614 41693421 83386842