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76670028 = 22325936097
BaseRepresentation
bin1001001000111…
…10010001001100
312100021020111200
410210132101030
5124111420103
611335145500
71620453531
oct444362114
9170236450
1076670028
113a307366
1221815290
1312b657a6
14a27ad88
156ae70a3
hex491e44c

76670028 has 36 divisors (see below), whose sum is σ = 197095080. Its totient is φ = 25122816.

The previous prime is 76670021. The next prime is 76670071. The reversal of 76670028 is 82007667.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 76669974 and 76670001.

It is not an unprimeable number, because it can be changed into a prime (76670021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15925 + ... + 20172.

Almost surely, 276670028 is an apocalyptic number.

It is an amenable number.

76670028 is an abundant number, since it is smaller than the sum of its proper divisors (120425052).

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

76670028 is a wasteful number, since it uses less digits than its factorization.

76670028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36166 (or 36161 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 36.

The square root of 76670028 is about 8756.1423012649. The cubic root of 76670028 is about 424.8235078014.

The spelling of 76670028 in words is "seventy-six million, six hundred seventy thousand, twenty-eight".

Divisors: 1 2 3 4 6 9 12 18 36 59 118 177 236 354 531 708 1062 2124 36097 72194 108291 144388 216582 324873 433164 649746 1299492 2129723 4259446 6389169 8518892 12778338 19167507 25556676 38335014 76670028