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30114820 = 22517233851
BaseRepresentation
bin111001011100…
…0010000000100
32002122222202201
41302320100010
530202133240
62553244244
7513654211
oct162702004
962588681
1030114820
1115aa978a
12a103684
136315328
143ddcb08
15299cd9a
hex1cb8404

30114820 has 48 divisors (see below), whose sum is σ = 69890688. Its totient is φ = 10841600.

The previous prime is 30114817. The next prime is 30114853. The reversal of 30114820 is 2841103.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5895 + ... + 9745.

It is an arithmetic number, because the mean of its divisors is an integer number (1456056).

Almost surely, 230114820 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 30114820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34945344).

30114820 is an abundant number, since it is smaller than the sum of its proper divisors (39775868).

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

30114820 is a wasteful number, since it uses less digits than its factorization.

30114820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3900 (or 3898 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 30114820 is about 5487.6971490781. The cubic root of 30114820 is about 311.1191597502.

Adding to 30114820 its reverse (2841103), we get a palindrome (32955923).

The spelling of 30114820 in words is "thirty million, one hundred fourteen thousand, eight hundred twenty".

Divisors: 1 2 4 5 10 17 20 23 34 46 68 85 92 115 170 230 340 391 460 782 1564 1955 3851 3910 7702 7820 15404 19255 38510 65467 77020 88573 130934 177146 261868 327335 354292 442865 654670 885730 1309340 1505741 1771460 3011482 6022964 7528705 15057410 30114820