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30855048 = 2337183661
BaseRepresentation
bin111010110110…
…0111110001000
32011001121011120
41311230332020
530344330143
63021155240
7523156260
oct165547610
964047146
1030855048
1116464944
12a3bbb20
136514233
1441527a0
152a97383
hex1d6cf88

30855048 has 32 divisors (see below), whose sum is σ = 88157760. Its totient is φ = 8815680.

The previous prime is 30855047. The next prime is 30855049. The reversal of 30855048 is 84055803.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (30855047) and next prime (30855049).

It is not an unprimeable number, because it can be changed into a prime (30855047) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91663 + ... + 91998.

It is an arithmetic number, because the mean of its divisors is an integer number (2754930).

Almost surely, 230855048 is an apocalyptic number.

It is an amenable number.

30855048 is an abundant number, since it is smaller than the sum of its proper divisors (57302712).

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

30855048 is a wasteful number, since it uses less digits than its factorization.

30855048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183677 (or 183673 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 33.

The square root of 30855048 is about 5554.7320367413. The cubic root of 30855048 is about 313.6476770928.

The spelling of 30855048 in words is "thirty million, eight hundred fifty-five thousand, forty-eight".

Divisors: 1 2 3 4 6 7 8 12 14 21 24 28 42 56 84 168 183661 367322 550983 734644 1101966 1285627 1469288 2203932 2571254 3856881 4407864 5142508 7713762 10285016 15427524 30855048