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30868374 = 2331672477
BaseRepresentation
bin111010111000…
…0001110010110
32011002021110010
41311300032112
530400241444
63021341050
7523243155
oct165601626
964067403
1030868374
1116473959
12a407786
13651a314
14415759c
152a9b2b9
hex1d70396

30868374 has 32 divisors (see below), whose sum is σ = 64705536. Its totient is φ = 9804960.

The previous prime is 30868351. The next prime is 30868391. The reversal of 30868374 is 47386803.

It is a Curzon number.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 11224 + ... + 13700.

It is an arithmetic number, because the mean of its divisors is an integer number (2022048).

Almost surely, 230868374 is an apocalyptic number.

30868374 is an abundant number, since it is smaller than the sum of its proper divisors (33837162).

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

30868374 is a wasteful number, since it uses less digits than its factorization.

30868374 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2580.

The product of its (nonzero) digits is 96768, while the sum is 39.

The square root of 30868374 is about 5555.9314250628. The cubic root of 30868374 is about 313.6928244041.

The spelling of 30868374 in words is "thirty million, eight hundred sixty-eight thousand, three hundred seventy-four".

Divisors: 1 2 3 6 31 62 67 93 134 186 201 402 2077 2477 4154 4954 6231 7431 12462 14862 76787 153574 165959 230361 331918 460722 497877 995754 5144729 10289458 15434187 30868374