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30977368 = 2311334267
BaseRepresentation
bin111011000101…
…0110101011000
32011021210221221
41312022311120
530412233433
63023541424
7524206012
oct166126530
964253857
1030977368
1116538834
12a45a874
136557b06
1441851b2
152abd72d
hex1d8ad58

30977368 has 16 divisors (see below), whose sum is σ = 58598280. Its totient is φ = 15351168.

The previous prime is 30977363. The next prime is 30977381. The reversal of 30977368 is 86377903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30977363) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 16230 + ... + 18037.

Almost surely, 230977368 is an apocalyptic number.

It is an amenable number.

30977368 is a deficient number, since it is larger than the sum of its proper divisors (27620912).

30977368 is a wasteful number, since it uses less digits than its factorization.

30977368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34386 (or 34382 counting only the distinct ones).

The product of its (nonzero) digits is 190512, while the sum is 43.

The square root of 30977368 is about 5565.7315781486. The cubic root of 30977368 is about 314.0615996096.

It can be divided in two parts, 309 and 77368, that added together give a palindrome (77677).

The spelling of 30977368 in words is "thirty million, nine hundred seventy-seven thousand, three hundred sixty-eight".

Divisors: 1 2 4 8 113 226 452 904 34267 68534 137068 274136 3872171 7744342 15488684 30977368