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30056634 = 2321669813
BaseRepresentation
bin111001010101…
…0000010111010
32002120000221200
41302222002322
530143303014
62552115030
7513322446
oct162520272
962500850
1030056634
1115a69aa3
12a095a76
1362c49ba
143dc5826
15298aa09
hex1caa0ba

30056634 has 12 divisors (see below), whose sum is σ = 65122746. Its totient is φ = 10018872.

The previous prime is 30056633. The next prime is 30056657. The reversal of 30056634 is 43665003.

It can be written as a sum of positive squares in only one way, i.e., 20115225 + 9941409 = 4485^2 + 3153^2 .

It is a junction number, because it is equal to n+sod(n) for n = 30056598 and 30056607.

It is not an unprimeable number, because it can be changed into a prime (30056633) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 834889 + ... + 834924.

Almost surely, 230056634 is an apocalyptic number.

30056634 is an abundant number, since it is smaller than the sum of its proper divisors (35066112).

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

30056634 is a wasteful number, since it uses less digits than its factorization.

30056634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1669821 (or 1669818 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 27.

The square root of 30056634 is about 5482.3930906129. The cubic root of 30056634 is about 310.9186554693.

The spelling of 30056634 in words is "thirty million, fifty-six thousand, six hundred thirty-four".

Divisors: 1 2 3 6 9 18 1669813 3339626 5009439 10018878 15028317 30056634