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220446426460 = 22513899526639
BaseRepresentation
bin1100110101001110100…
…0011000010101011100
3210002000021211202201111
43031103220120111130
512102433241121320
6245134403551404
721632603464531
oct3152350302534
9702007752644
10220446426460
1185544296007
123688308b564
1317a32342080
14a9537b4d88
155b034c4a5a
hex3353a1855c

220446426460 has 48 divisors (see below), whose sum is σ = 504149788800. Its totient is φ = 80481037824.

The previous prime is 220446426439. The next prime is 220446426553. The reversal of 220446426460 is 64624644022.

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, 4740180 + ... + 4786459.

It is an arithmetic number, because the mean of its divisors is an integer number (10503120600).

Almost surely, 2220446426460 is an apocalyptic number.

220446426460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220446426460 is an abundant number, since it is smaller than the sum of its proper divisors (283703362340).

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

220446426460 is a wasteful number, since it uses less digits than its factorization.

220446426460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9526750 (or 9526748 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 40.

The spelling of 220446426460 in words is "two hundred twenty billion, four hundred forty-six million, four hundred twenty-six thousand, four hundred sixty".

Divisors: 1 2 4 5 10 13 20 26 52 65 89 130 178 260 356 445 890 1157 1780 2314 4628 5785 11570 23140 9526639 19053278 38106556 47633195 95266390 123846307 190532780 247692614 495385228 619231535 847870871 1238463070 1695741742 2476926140 3391483484 4239354355 8478708710 11022321323 16957417420 22044642646 44089285292 55111606615 110223213230 220446426460