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30220060 = 22513472473
BaseRepresentation
bin111001101000…
…1111100011100
32002212100010111
41303101330130
530214020220
62555415404
7514603063
oct163217434
962770114
1030220060
1116070862
12a154564
1363511c0
1440291da
1529be15a
hex1cd1f1c

30220060 has 48 divisors (see below), whose sum is σ = 69826176. Its totient is φ = 10916352.

The previous prime is 30220049. The next prime is 30220061. The reversal of 30220060 is 6002203.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a self number, because there is not a number n which added to its sum of digits gives 30220060.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30220061) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10984 + ... + 13456.

It is an arithmetic number, because the mean of its divisors is an integer number (1454712).

Almost surely, 230220060 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30220060, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34913088).

30220060 is an abundant number, since it is smaller than the sum of its proper divisors (39606116).

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

30220060 is a wasteful number, since it uses less digits than its factorization.

30220060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2542 (or 2540 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 30220060 is about 5497.2775080034. The cubic root of 30220060 is about 311.4811533213.

Adding to 30220060 its reverse (6002203), we get a palindrome (36222263).

The spelling of 30220060 in words is "thirty million, two hundred twenty thousand, sixty".

Divisors: 1 2 4 5 10 13 20 26 47 52 65 94 130 188 235 260 470 611 940 1222 2444 2473 3055 4946 6110 9892 12220 12365 24730 32149 49460 64298 116231 128596 160745 232462 321490 464924 581155 642980 1162310 1511003 2324620 3022006 6044012 7555015 15110030 30220060