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30868743 = 331193299
BaseRepresentation
bin111010111000…
…0010100000111
32011002021221210
41311300110013
530400244433
63021342503
7523244223
oct165602407
964067853
1030868743
1116474164
12a407a33
13651a539
144157783
152a9b463
hex1d70507

30868743 has 8 divisors (see below), whose sum is σ = 41184000. Its totient is φ = 20566328.

The previous prime is 30868723. The next prime is 30868757. The reversal of 30868743 is 34786803.

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

It is a cyclic number.

It is not a de Polignac number, because 30868743 - 221 = 28771591 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30868723) 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, 7708 + ... + 11006.

It is an arithmetic number, because the mean of its divisors is an integer number (5148000).

Almost surely, 230868743 is an apocalyptic number.

30868743 is a deficient number, since it is larger than the sum of its proper divisors (10315257).

30868743 is a wasteful number, since it uses less digits than its factorization.

30868743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6421.

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

The square root of 30868743 is about 5555.9646327168. The cubic root of 30868743 is about 313.6940743586.

The spelling of 30868743 in words is "thirty million, eight hundred sixty-eight thousand, seven hundred forty-three".

Divisors: 1 3 3119 3299 9357 9897 10289581 30868743