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30055006 = 2109137867
BaseRepresentation
bin111001010100…
…1101001011110
32002112221201101
41302221221132
530143230011
62552103314
7513314632
oct162515136
962487641
1030055006
1115a68853
12a094b3a
1362c4037
143dc4dc2
15298a2c1
hex1ca9a5e

30055006 has 8 divisors (see below), whose sum is σ = 45496440. Its totient is φ = 14889528.

The previous prime is 30055001. The next prime is 30055021. The reversal of 30055006 is 60055003.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30055001) 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, 68716 + ... + 69151.

It is an arithmetic number, because the mean of its divisors is an integer number (5687055).

Almost surely, 230055006 is an apocalyptic number.

30055006 is a deficient number, since it is larger than the sum of its proper divisors (15441434).

30055006 is a wasteful number, since it uses less digits than its factorization.

30055006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137978.

The product of its (nonzero) digits is 450, while the sum is 19.

The square root of 30055006 is about 5482.2446132948. The cubic root of 30055006 is about 310.9130417922.

The spelling of 30055006 in words is "thirty million, fifty-five thousand, six".

Divisors: 1 2 109 218 137867 275734 15027503 30055006