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30026930 = 2517176629
BaseRepresentation
bin111001010001…
…0110010110010
32002111112012112
41302202302302
530141330210
62551325322
7513140033
oct162426262
962445175
1030026930
1115a4974a
12a080842
1362b431b
143db8a8a
152981d05
hex1ca2cb2

30026930 has 16 divisors (see below), whose sum is σ = 57228120. Its totient is φ = 11304192.

The previous prime is 30026923. The next prime is 30026957. The reversal of 30026930 is 3962003.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 28185481 + 1841449 = 5309^2 + 1357^2 .

It is a junction number, because it is equal to n+sod(n) for n = 30026896 and 30026905.

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, 88145 + ... + 88484.

Almost surely, 230026930 is an apocalyptic number.

30026930 is a deficient number, since it is larger than the sum of its proper divisors (27201190).

30026930 is a wasteful number, since it uses less digits than its factorization.

30026930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176653.

The product of its (nonzero) digits is 972, while the sum is 23.

The square root of 30026930 is about 5479.6833850141. The cubic root of 30026930 is about 310.8161980905.

Adding to 30026930 its reverse (3962003), we get a palindrome (33988933).

The spelling of 30026930 in words is "thirty million, twenty-six thousand, nine hundred thirty".

Divisors: 1 2 5 10 17 34 85 170 176629 353258 883145 1766290 3002693 6005386 15013465 30026930