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30026888 = 233753361
BaseRepresentation
bin111001010001…
…0110010001000
32002111112010222
41302202302020
530141330023
62551325212
7513136643
oct162426210
962445128
1030026888
1115a49711
12a080808
1362b42b8
143db8a5a
152981cc8
hex1ca2c88

30026888 has 8 divisors (see below), whose sum is σ = 56300430. Its totient is φ = 15013440.

The previous prime is 30026881. The next prime is 30026917. The reversal of 30026888 is 88862003.

It can be written as a sum of positive squares in only one way, i.e., 28494244 + 1532644 = 5338^2 + 1238^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×300268882 = 1803228005929088, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (30026881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1876673 + ... + 1876688.

Almost surely, 230026888 is an apocalyptic number.

It is an amenable number.

30026888 is a deficient number, since it is larger than the sum of its proper divisors (26273542).

30026888 is a wasteful number, since it uses less digits than its factorization.

30026888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3753367 (or 3753363 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 35.

The square root of 30026888 is about 5479.6795526746. The cubic root of 30026888 is about 310.8160531730.

The spelling of 30026888 in words is "thirty million, twenty-six thousand, eight hundred eighty-eight".

Divisors: 1 2 4 8 3753361 7506722 15013444 30026888