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28663062 = 2313136467
BaseRepresentation
bin110110101010…
…1110100010110
31222221020022220
41231111310112
524314204222
62502203210
7465426531
oct155256426
958836286
1028663062
11151a7a8a
129723506
135c275bc
143b41a18
1527b2b5c
hex1b55d16

28663062 has 16 divisors (see below), whose sum is σ = 57765312. Its totient is φ = 9481160.

The previous prime is 28663057. The next prime is 28663081. The reversal of 28663062 is 26036682.

It is a super-2 number, since 2×286630622 = 1643142246431688, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17448 + ... + 19019.

It is an arithmetic number, because the mean of its divisors is an integer number (3610332).

Almost surely, 228663062 is an apocalyptic number.

28663062 is an abundant number, since it is smaller than the sum of its proper divisors (29102250).

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

28663062 is a wasteful number, since it uses less digits than its factorization.

28663062 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36603.

The product of its (nonzero) digits is 20736, while the sum is 33.

The square root of 28663062 is about 5353.7894990371. The cubic root of 28663062 is about 306.0371820340.

The spelling of 28663062 in words is "twenty-eight million, six hundred sixty-three thousand, sixty-two".

Divisors: 1 2 3 6 131 262 393 786 36467 72934 109401 218802 4777177 9554354 14331531 28663062