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3078228 = 2231923587
BaseRepresentation
bin1011101111100001010100
312210101112110
423233201110
51242000403
6145551020
735110266
oct13574124
95711473
103078228
11181279a
121045470
1383a14a
145a1b36
1540c103
hex2ef854

3078228 has 48 divisors (see below), whose sum is σ = 7902720. Its totient is φ = 928224.

The previous prime is 3078227. The next prime is 3078259. The reversal of 3078228 is 8228703.

It is a junction number, because it is equal to n+sod(n) for n = 3078195 and 3078204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3078223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4951 + ... + 5537.

It is an arithmetic number, because the mean of its divisors is an integer number (164640).

Almost surely, 23078228 is an apocalyptic number.

3078228 is a gapful number since it is divisible by the number (38) 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 3078228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3951360).

3078228 is an abundant number, since it is smaller than the sum of its proper divisors (4824492).

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

3078228 is a wasteful number, since it uses less digits than its factorization.

3078228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 636 (or 634 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 3078228 is about 1754.4879594913. The cubic root of 3078228 is about 145.4678191958.

The spelling of 3078228 in words is "three million, seventy-eight thousand, two hundred twenty-eight".

Divisors: 1 2 3 4 6 12 19 23 38 46 57 69 76 92 114 138 228 276 437 587 874 1174 1311 1748 1761 2348 2622 3522 5244 7044 11153 13501 22306 27002 33459 40503 44612 54004 66918 81006 133836 162012 256519 513038 769557 1026076 1539114 3078228