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30894548 = 2253612389
BaseRepresentation
bin111010111011…
…0100111010100
32011010121100112
41311312213110
530402111143
63022102152
7523412366
oct165664724
964117315
1030894548
1116491593
12a41a958
1365291c9
144162d36
152aa3e18
hex1d769d4

30894548 has 24 divisors (see below), whose sum is σ = 56012040. Its totient is φ = 14901120.

The previous prime is 30894533. The next prime is 30894553. The reversal of 30894548 is 84549803.

It can be written as a sum of positive squares in 4 ways, for example, as 114244 + 30780304 = 338^2 + 5548^2 .

It is a super-2 number, since 2×308945482 = 1908946192248608, which contains 22 as substring.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

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, 11738 + ... + 14126.

It is an arithmetic number, because the mean of its divisors is an integer number (2333835).

Almost surely, 230894548 is an apocalyptic number.

It is an amenable number.

30894548 is a deficient number, since it is larger than the sum of its proper divisors (25117492).

30894548 is a wasteful number, since it uses less digits than its factorization.

30894548 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2507 (or 2505 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 41.

The square root of 30894548 is about 5558.2864265887. The cubic root of 30894548 is about 313.7814617953.

The spelling of 30894548 in words is "thirty million, eight hundred ninety-four thousand, five hundred forty-eight".

Divisors: 1 2 4 53 61 106 122 212 244 2389 3233 4778 6466 9556 12932 126617 145729 253234 291458 506468 582916 7723637 15447274 30894548