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2630228 = 22657557
BaseRepresentation
bin1010000010001001010100
311221121222212
422002021110
51133131403
6132212552
731233206
oct12021124
94847885
102630228
111537147
12a6a158
13711263
144c6776
1536e4d8
hex282254

2630228 has 6 divisors (see below), whose sum is σ = 4602906. Its totient is φ = 1315112.

The previous prime is 2630207. The next prime is 2630237. The reversal of 2630228 is 8220362.

It can be written as a sum of positive squares in only one way, i.e., 2598544 + 31684 = 1612^2 + 178^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 328775 + ... + 328782.

It is an arithmetic number, because the mean of its divisors is an integer number (767151).

22630228 is an apocalyptic number.

It is an amenable number.

2630228 is a deficient number, since it is larger than the sum of its proper divisors (1972678).

2630228 is a wasteful number, since it uses less digits than its factorization.

2630228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 657561 (or 657559 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 2630228 is about 1621.7977679107. The cubic root of 2630228 is about 138.0377268552.

The spelling of 2630228 in words is "two million, six hundred thirty thousand, two hundred twenty-eight".

Divisors: 1 2 4 657557 1315114 2630228