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30495982 = 2111386181
BaseRepresentation
bin111010001010…
…1010011101110
32010101100121211
41310111103232
530301332412
63005345034
7520132366
oct164252356
963340554
1030495982
111623a0a0
12a26817a
13641997a
14409b9a6
152a25ca7
hex1d154ee

30495982 has 8 divisors (see below), whose sum is σ = 49902552. Its totient is φ = 13861800.

The previous prime is 30495967. The next prime is 30496027. The reversal of 30495982 is 28959403.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 693069 + ... + 693112.

It is an arithmetic number, because the mean of its divisors is an integer number (6237819).

Almost surely, 230495982 is an apocalyptic number.

30495982 is a deficient number, since it is larger than the sum of its proper divisors (19406570).

30495982 is a wasteful number, since it uses less digits than its factorization.

30495982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1386194.

The product of its (nonzero) digits is 77760, while the sum is 40.

The square root of 30495982 is about 5522.3167239846. The cubic root of 30495982 is about 312.4262678315.

The spelling of 30495982 in words is "thirty million, four hundred ninety-five thousand, nine hundred eighty-two".

Divisors: 1 2 11 22 1386181 2772362 15247991 30495982