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3678828 = 2231132713
BaseRepresentation
bin1110000010001001101100
320220220101220
432002021230
51420210303
6210503340
743161306
oct16021154
96826356
103678828
112092a5a
121294b50
139ba62a
146ba976
154ca053
hex38226c

3678828 has 24 divisors (see below), whose sum is σ = 8663088. Its totient is φ = 1214976.

The previous prime is 3678823. The next prime is 3678833. The reversal of 3678828 is 8288763.

3678828 is a nontrivial binomial coefficient, being equal to C(2713, 2).

It is an interprime number because it is at equal distance from previous prime (3678823) and next prime (3678833).

It is a self number, because there is not a number n which added to its sum of digits gives 3678828.

It is not an unprimeable number, because it can be changed into a prime (3678821) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1 + ... + 2712.

It is an arithmetic number, because the mean of its divisors is an integer number (360962).

Almost surely, 23678828 is an apocalyptic number.

3678828 is the 2712-nd triangular number.

It is an amenable number.

3678828 is an abundant number, since it is smaller than the sum of its proper divisors (4984260).

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

3678828 is a wasteful number, since it uses less digits than its factorization.

3678828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2833 (or 2831 counting only the distinct ones).

The product of its digits is 129024, while the sum is 42.

The square root of 3678828 is about 1918.0271113829. The cubic root of 3678828 is about 154.3724610159.

The spelling of 3678828 in words is "three million, six hundred seventy-eight thousand, eight hundred twenty-eight".

Divisors: 1 2 3 4 6 12 113 226 339 452 678 1356 2713 5426 8139 10852 16278 32556 306569 613138 919707 1226276 1839414 3678828