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30628862 = 2111392221
BaseRepresentation
bin111010011010…
…1101111111110
32010122002220022
41310311233332
530320110422
63012252142
7521224655
oct164655776
963562808
1030628862
111631aa10
12a311052
1364652b4
1440d419c
152a50342
hex1d35bfe

30628862 has 8 divisors (see below), whose sum is σ = 50119992. Its totient is φ = 13922200.

The previous prime is 30628831. The next prime is 30628867. The reversal of 30628862 is 26882603.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30628867) 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, 696089 + ... + 696132.

It is an arithmetic number, because the mean of its divisors is an integer number (6264999).

Almost surely, 230628862 is an apocalyptic number.

30628862 is a deficient number, since it is larger than the sum of its proper divisors (19491130).

30628862 is a wasteful number, since it uses less digits than its factorization.

30628862 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1392234.

The product of its (nonzero) digits is 27648, while the sum is 35.

The square root of 30628862 is about 5534.3348290468. The cubic root of 30628862 is about 312.8793881804.

The spelling of 30628862 in words is "thirty million, six hundred twenty-eight thousand, eight hundred sixty-two".

Divisors: 1 2 11 22 1392221 2784442 15314431 30628862