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30923146 = 219813767
BaseRepresentation
bin111010111110…
…1100110001010
32011012001120201
41311331212022
530404020041
63022442414
7523561642
oct165754612
964161521
1030923146
1116501021
12a43340a
136539227
14416d522
152aac631
hex1d7d98a

30923146 has 8 divisors (see below), whose sum is σ = 48826080. Its totient is φ = 14647788.

The previous prime is 30923129. The next prime is 30923159. The reversal of 30923146 is 64132903.

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

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, 406846 + ... + 406921.

It is an arithmetic number, because the mean of its divisors is an integer number (6103260).

Almost surely, 230923146 is an apocalyptic number.

30923146 is a deficient number, since it is larger than the sum of its proper divisors (17902934).

30923146 is a wasteful number, since it uses less digits than its factorization.

30923146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 813788.

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 30923146 is about 5560.8583869759. The cubic root of 30923146 is about 313.8782507697.

The spelling of 30923146 in words is "thirty million, nine hundred twenty-three thousand, one hundred forty-six".

Divisors: 1 2 19 38 813767 1627534 15461573 30923146