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30002221111220 = 22523151143164937
BaseRepresentation
bin1101101001001011011111…
…01110110101011110110100
310221020011222101002220021122
412310211233232311132310
512413024022101024340
6143450455145203112
76214406002463141
oct664455756653664
9127204871086248
1030002221111220
11961796372a866
12344676b190498
131398274652a47
1475a1883613c8
1537065ecb5db5
hex1b496fbb57b4

30002221111220 has 48 divisors (see below), whose sum is σ = 65787509346048. Its totient is φ = 11471513391360.

The previous prime is 30002221111183. The next prime is 30002221111241. The reversal of 30002221111220 is 2211112220003.

It is a congruent number.

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, 20887409 + ... + 22277528.

It is an arithmetic number, because the mean of its divisors is an integer number (1370573111376).

Almost surely, 230002221111220 is an apocalyptic number.

It is an amenable number.

30002221111220 is an abundant number, since it is smaller than the sum of its proper divisors (35785288234828).

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

30002221111220 is a wasteful number, since it uses less digits than its factorization.

30002221111220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43166480 (or 43166478 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 30002221111220 its reverse (2211112220003), we get a palindrome (32213333331223).

The spelling of 30002221111220 in words is "thirty trillion, two billion, two hundred twenty-one million, one hundred eleven thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 23 46 92 115 230 460 1511 3022 6044 7555 15110 30220 34753 69506 139012 173765 347530 695060 43164937 86329874 172659748 215824685 431649370 863298740 992793551 1985587102 3971174204 4963967755 9927935510 19855871020 65222219807 130444439614 260888879228 326111099035 652222198070 1304444396140 1500111055561 3000222111122 6000444222244 7500555277805 15001110555610 30002221111220