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30555046 = 2130711689
BaseRepresentation
bin111010010001…
…1101110100110
32010111100122101
41310203232212
530310230141
63010522314
7520466524
oct164435646
963440571
1030555046
111627a505
12a29639a
13643a812
1440b5314
152a38531
hex1d23ba6

30555046 has 8 divisors (see below), whose sum is σ = 45871560. Its totient is φ = 15264528.

The previous prime is 30555043. The next prime is 30555047. The reversal of 30555046 is 64055503.

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

It is a super-2 number, since 2×305550462 = 1867221672124232, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30555043) 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, 3231 + ... + 8458.

It is an arithmetic number, because the mean of its divisors is an integer number (5733945).

Almost surely, 230555046 is an apocalyptic number.

30555046 is a deficient number, since it is larger than the sum of its proper divisors (15316514).

30555046 is a wasteful number, since it uses less digits than its factorization.

30555046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12998.

The product of its (nonzero) digits is 9000, while the sum is 28.

The square root of 30555046 is about 5527.6618926993. The cubic root of 30555046 is about 312.6278380433.

The spelling of 30555046 in words is "thirty million, five hundred fifty-five thousand, forty-six".

Divisors: 1 2 1307 2614 11689 23378 15277523 30555046