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30494946 = 235082491
BaseRepresentation
bin111010001010…
…1000011100010
32010101022012110
41310111003202
530301314241
63005340150
7520126356
oct164250342
963338173
1030494946
1116239339
12a267656
136419361
14409b466
152a25816
hex1d150e2

30494946 has 8 divisors (see below), whose sum is σ = 60989904. Its totient is φ = 10164980.

The previous prime is 30494909. The next prime is 30494951. The reversal of 30494946 is 64949403.

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

30494946 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2541240 + ... + 2541251.

It is an arithmetic number, because the mean of its divisors is an integer number (7623738).

Almost surely, 230494946 is an apocalyptic number.

30494946 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

30494946 is a wasteful number, since it uses less digits than its factorization.

30494946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5082496.

The product of its (nonzero) digits is 93312, while the sum is 39.

The square root of 30494946 is about 5522.2229219763. Note that the first 3 decimals coincide. The cubic root of 30494946 is about 312.4227299088.

The spelling of 30494946 in words is "thirty million, four hundred ninety-four thousand, nine hundred forty-six".

Divisors: 1 2 3 6 5082491 10164982 15247473 30494946