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30519082 = 2111387231
BaseRepresentation
bin111010001101…
…0111100101010
32010102112022101
41310122330222
530303102312
63010044014
7520256626
oct164327452
963375271
1030519082
1116255490
12a27960a
136427339
1440a6186
152a2ca57
hex1d1af2a

30519082 has 8 divisors (see below), whose sum is σ = 49940352. Its totient is φ = 13872300.

The previous prime is 30519077. The next prime is 30519089. The reversal of 30519082 is 28091503.

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

It is a super-2 number, since 2×305190822 = 1862828732245448, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 30519082.

It is not an unprimeable number, because it can be changed into a prime (30519089) 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, 693594 + ... + 693637.

It is an arithmetic number, because the mean of its divisors is an integer number (6242544).

Almost surely, 230519082 is an apocalyptic number.

30519082 is a deficient number, since it is larger than the sum of its proper divisors (19421270).

30519082 is a wasteful number, since it uses less digits than its factorization.

30519082 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1387244.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 30519082 is about 5524.4078415700. The cubic root of 30519082 is about 312.5051331423.

The spelling of 30519082 in words is "thirty million, five hundred nineteen thousand, eighty-two".

Divisors: 1 2 11 22 1387231 2774462 15259541 30519082