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30220312000 = 26533777539
BaseRepresentation
bin11100001001010001…
…010101110111000000
32220000002211220121211
4130021101111313000
5443342344441000
621514422055504
72116613261614
oct341121256700
986002756554
1030220312000
11118a863a76a
125a3487a594
132b07c11828
1416697d7344
15bbd1467ba
hex709455dc0

30220312000 has 56 divisors (see below), whose sum is σ = 74840622480. Its totient is φ = 12088121600.

The previous prime is 30220311983. The next prime is 30220312013. The reversal of 30220312000 is 21302203.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1880770 + ... + 1896769.

Almost surely, 230220312000 is an apocalyptic number.

It is an amenable number.

30220312000 is an abundant number, since it is smaller than the sum of its proper divisors (44620310480).

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

30220312000 is an equidigital number, since it uses as much as digits as its factorization.

30220312000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3777566 (or 3777546 counting only the distinct ones).

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

Adding to 30220312000 its reverse (21302203), we get a palindrome (30241614203).

The spelling of 30220312000 in words is "thirty billion, two hundred twenty million, three hundred twelve thousand".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 64 80 100 125 160 200 250 320 400 500 800 1000 1600 2000 4000 8000 3777539 7555078 15110156 18887695 30220312 37775390 60440624 75550780 94438475 120881248 151101560 188876950 241762496 302203120 377753900 472192375 604406240 755507800 944384750 1208812480 1511015600 1888769500 3022031200 3777539000 6044062400 7555078000 15110156000 30220312000