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30030158 = 215015079
BaseRepresentation
bin111001010001…
…1100101001110
32002111200122002
41302203211032
530141431113
62551352302
7513152324
oct162434516
962450562
1030030158
1115a51114
12a082692
1362b5932
143db9d14
152982c58
hex1ca394e

30030158 has 4 divisors (see below), whose sum is σ = 45045240. Its totient is φ = 15015078.

The previous prime is 30030151. The next prime is 30030173. The reversal of 30030158 is 85103003.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30030151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7507538 + ... + 7507541.

It is an arithmetic number, because the mean of its divisors is an integer number (11261310).

Almost surely, 230030158 is an apocalyptic number.

30030158 is a deficient number, since it is larger than the sum of its proper divisors (15015082).

30030158 is a wasteful number, since it uses less digits than its factorization.

30030158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15015081.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 30030158 is about 5479.9779196635. The cubic root of 30030158 is about 310.8273356342.

It can be divided in two parts, 30030 and 158, that multiplied together give a triangular number (4744740 = T3080).

The spelling of 30030158 in words is "thirty million, thirty thousand, one hundred fifty-eight".

Divisors: 1 2 15015079 30030158