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30056426 = 238233931
BaseRepresentation
bin111001010100…
…1111111101010
32002120000122222
41302221333222
530143301201
62552114042
7513322031
oct162517752
962500588
1030056426
1115a69924
12a095922
1362c488a
143dc5718
15298a91b
hex1ca9fea

30056426 has 8 divisors (see below), whose sum is σ = 45107904. Its totient is φ = 15020460.

The previous prime is 30056417. The next prime is 30056443. The reversal of 30056426 is 62465003.

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

It is a super-4 number, since 4×300564264 (a number of 31 digits) contains 4444 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30056395 and 30056404.

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, 5681 + ... + 9611.

It is an arithmetic number, because the mean of its divisors is an integer number (5638488).

Almost surely, 230056426 is an apocalyptic number.

30056426 is a deficient number, since it is larger than the sum of its proper divisors (15051478).

30056426 is a wasteful number, since it uses less digits than its factorization.

30056426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7756.

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 30056426 is about 5482.3741207619. The cubic root of 30056426 is about 310.9179382540.

The spelling of 30056426 in words is "thirty million, fifty-six thousand, four hundred twenty-six".

Divisors: 1 2 3823 3931 7646 7862 15028213 30056426