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30506060 = 22513117331
BaseRepresentation
bin111010001011…
…1110001001100
32010101212110002
41310113301030
530302143220
63005503432
7520203644
oct164276114
963355402
1030506060
1116246722
12a271b78
136421430
1440a1524
152a28c75
hex1d17c4c

30506060 has 24 divisors (see below), whose sum is σ = 68991216. Its totient is φ = 11263680.

The previous prime is 30506059. The next prime is 30506071. The reversal of 30506060 is 6060503.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 58406 + ... + 58925.

It is an arithmetic number, because the mean of its divisors is an integer number (2874634).

Almost surely, 230506060 is an apocalyptic number.

It is an amenable number.

30506060 is an abundant number, since it is smaller than the sum of its proper divisors (38485156).

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

30506060 is a wasteful number, since it uses less digits than its factorization.

30506060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117353 (or 117351 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 20.

The square root of 30506060 is about 5523.2291279649. The cubic root of 30506060 is about 312.4606798528.

Adding to 30506060 its reverse (6060503), we get a palindrome (36566563).

The spelling of 30506060 in words is "thirty million, five hundred six thousand, sixty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 260 117331 234662 469324 586655 1173310 1525303 2346620 3050606 6101212 7626515 15253030 30506060