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83261028 = 2236938419
BaseRepresentation
bin1001111011001…
…11011001100100
312210200002122210
410331213121210
5132303323103
612132323420
72030464344
oct475473144
9183602583
1083261028
1142aa9274
1223a73570
13143327a6
14b0b4d24
157499e03
hex4f67664

83261028 has 12 divisors (see below), whose sum is σ = 194275760. Its totient is φ = 27753672.

The previous prime is 83261027. The next prime is 83261041. The reversal of 83261028 is 82016238.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 83260986 and 83261004.

It is not an unprimeable number, because it can be changed into a prime (83261027) 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, 3469198 + ... + 3469221.

Almost surely, 283261028 is an apocalyptic number.

It is an amenable number.

83261028 is an abundant number, since it is smaller than the sum of its proper divisors (111014732).

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

83261028 is a wasteful number, since it uses less digits than its factorization.

83261028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6938426 (or 6938424 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 83261028 is about 9124.7481061123. The cubic root of 83261028 is about 436.6638667601.

The spelling of 83261028 in words is "eighty-three million, two hundred sixty-one thousand, twenty-eight".

Divisors: 1 2 3 4 6 12 6938419 13876838 20815257 27753676 41630514 83261028