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30839682 = 2319932579
BaseRepresentation
bin111010110100…
…1001110000010
32011000211002110
41311221032002
530343332212
63021000150
7523063416
oct165511602
964024073
1030839682
1116454345
12a3b3056
13650a243
14414ad46
152a92a3c
hex1d69382

30839682 has 16 divisors (see below), whose sum is σ = 61734240. Its totient is φ = 10270752.

The previous prime is 30839681. The next prime is 30839687. The reversal of 30839682 is 28693803.

It is a super-2 number, since 2×308396822 = 1902171971722248, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 30839682.

It is not an unprimeable number, because it can be changed into a prime (30839681) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10669 + ... + 13247.

It is an arithmetic number, because the mean of its divisors is an integer number (3858390).

Almost surely, 230839682 is an apocalyptic number.

30839682 is an abundant number, since it is smaller than the sum of its proper divisors (30894558).

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

30839682 is a wasteful number, since it uses less digits than its factorization.

30839682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4577.

The product of its (nonzero) digits is 62208, while the sum is 39.

The square root of 30839682 is about 5553.3487194665. The cubic root of 30839682 is about 313.5956023024.

The spelling of 30839682 in words is "thirty million, eight hundred thirty-nine thousand, six hundred eighty-two".

Divisors: 1 2 3 6 1993 2579 3986 5158 5979 7737 11958 15474 5139947 10279894 15419841 30839682