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30290946 = 237721213
BaseRepresentation
bin111001110001…
…1010000000010
32002222221100220
41303203100002
530223302241
63001123510
7515316540
oct163432002
962887326
1030290946
111610a044
12a189596
13637754a
144046d90
1529d5166
hex1ce3402

30290946 has 16 divisors (see below), whose sum is σ = 69236544. Its totient is φ = 8654544.

The previous prime is 30290903. The next prime is 30290969. The reversal of 30290946 is 64909203.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 360565 + ... + 360648.

It is an arithmetic number, because the mean of its divisors is an integer number (4327284).

Almost surely, 230290946 is an apocalyptic number.

30290946 is an abundant number, since it is smaller than the sum of its proper divisors (38945598).

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

30290946 is a wasteful number, since it uses less digits than its factorization.

30290946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 721225.

The product of its (nonzero) digits is 11664, while the sum is 33.

The square root of 30290946 is about 5503.7211048526. The cubic root of 30290946 is about 311.7245061550.

The spelling of 30290946 in words is "thirty million, two hundred ninety thousand, nine hundred forty-six".

Divisors: 1 2 3 6 7 14 21 42 721213 1442426 2163639 4327278 5048491 10096982 15145473 30290946