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30026394 = 2321668133
BaseRepresentation
bin111001010001…
…0101010011010
32002111111110200
41302202222122
530141321034
62551323030
7513135336
oct162425232
962444420
1030026394
1115a49302
12a080476
1362b3cc8
143db87c6
152981a99
hex1ca2a9a

30026394 has 12 divisors (see below), whose sum is σ = 65057226. Its totient is φ = 10008792.

The previous prime is 30026389. The next prime is 30026413. The reversal of 30026394 is 49362003.

It can be written as a sum of positive squares in only one way, i.e., 27092025 + 2934369 = 5205^2 + 1713^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 834049 + ... + 834084.

Almost surely, 230026394 is an apocalyptic number.

30026394 is an abundant number, since it is smaller than the sum of its proper divisors (35030832).

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

30026394 is a wasteful number, since it uses less digits than its factorization.

30026394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1668141 (or 1668138 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

The square root of 30026394 is about 5479.6344768607. The cubic root of 30026394 is about 310.8143486565.

Adding to 30026394 its reverse (49362003), we get a palindrome (79388397).

The spelling of 30026394 in words is "thirty million, twenty-six thousand, three hundred ninety-four".

Divisors: 1 2 3 6 9 18 1668133 3336266 5004399 10008798 15013197 30026394