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30898944 = 283213411
BaseRepresentation
bin111010111011…
…1101100000000
32011010211101100
41311313230000
530402231234
63022134400
7523431246
oct165675400
964124340
1030898944
111649491a
12a421400
13652b1cb
144164796
152aa5399
hex1d77b00

30898944 has 54 divisors (see below), whose sum is σ = 89095916. Its totient is φ = 10298880.

The previous prime is 30898939. The next prime is 30898951. The reversal of 30898944 is 44989803.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 30898944.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4402 + ... + 9009.

Almost surely, 230898944 is an apocalyptic number.

It is an amenable number.

30898944 is an abundant number, since it is smaller than the sum of its proper divisors (58196972).

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

30898944 is a wasteful number, since it uses less digits than its factorization.

30898944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13433 (or 13416 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The square root of 30898944 is about 5558.6818581387. The cubic root of 30898944 is about 313.7963437942.

The spelling of 30898944 in words is "thirty million, eight hundred ninety-eight thousand, nine hundred forty-four".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 32 36 48 64 72 96 128 144 192 256 288 384 576 768 1152 2304 13411 26822 40233 53644 80466 107288 120699 160932 214576 241398 321864 429152 482796 643728 858304 965592 1287456 1716608 1931184 2574912 3433216 3862368 5149824 7724736 10299648 15449472 30898944