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28314130 = 2513353617
BaseRepresentation
bin110110000000…
…0101000010010
31222021111200111
41230000220102
524222023010
62450511534
7462444325
oct154005022
958244614
1028314130
1114a89909
1295955aa
135b34830
143a907bc
15274458a
hex1b00a12

28314130 has 32 divisors (see below), whose sum is σ = 55130544. Its totient is φ = 10407936.

The previous prime is 28314119. The next prime is 28314151. The reversal of 28314130 is 3141382.

It can be written as a sum of positive squares in 8 ways, for example, as 762129 + 27552001 = 873^2 + 5249^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45582 + ... + 46198.

Almost surely, 228314130 is an apocalyptic number.

28314130 is a deficient number, since it is larger than the sum of its proper divisors (26816414).

28314130 is a wasteful number, since it uses less digits than its factorization.

28314130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 990.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 28314130 is about 5321.1023294051. The cubic root of 28314130 is about 304.7902526373.

The spelling of 28314130 in words is "twenty-eight million, three hundred fourteen thousand, one hundred thirty".

Divisors: 1 2 5 10 13 26 65 130 353 617 706 1234 1765 3085 3530 4589 6170 8021 9178 16042 22945 40105 45890 80210 217801 435602 1089005 2178010 2831413 5662826 14157065 28314130