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30882986 = 260125693
BaseRepresentation
bin111010111001…
…1110010101010
32011010000111022
41311303302222
530401223421
63021532442
7523333601
oct165636252
964100438
1030882986
1116483932
12a414122
136523b74
14415ca38
152aa07ab
hex1d73caa

30882986 has 8 divisors (see below), whose sum is σ = 46403364. Its totient is φ = 15415200.

The previous prime is 30882979. The next prime is 30882989. The reversal of 30882986 is 68928803.

It can be written as a sum of positive squares in 2 ways, for example, as 25959025 + 4923961 = 5095^2 + 2219^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (30882989) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11645 + ... + 14048.

Almost surely, 230882986 is an apocalyptic number.

30882986 is a deficient number, since it is larger than the sum of its proper divisors (15520378).

30882986 is a wasteful number, since it uses less digits than its factorization.

30882986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26296.

The product of its (nonzero) digits is 165888, while the sum is 44.

The square root of 30882986 is about 5557.2462605143. The cubic root of 30882986 is about 313.7423136374.

The spelling of 30882986 in words is "thirty million, eight hundred eighty-two thousand, nine hundred eighty-six".

Divisors: 1 2 601 1202 25693 51386 15441493 30882986