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1220422848 = 2638577417
BaseRepresentation
bin100100010111110…
…0010110011000000
310011001102220102020
41020233202303000
54444412012343
6321033521440
742146265051
oct11057426300
93131386366
101220422848
11576995827
122a0873280
13165ac51c8
14b8128728
1572221b83
hex48be2cc0

1220422848 has 56 divisors (see below), whose sum is σ = 3233239152. Its totient is φ = 406278144.

The previous prime is 1220422831. The next prime is 1220422867. The reversal of 1220422848 is 8482240221.

It is a super-2 number, since 2×12204228482 = 2978863855840862208, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 160836 + ... + 168252.

Almost surely, 21220422848 is an apocalyptic number.

It is an amenable number.

1220422848 is an abundant number, since it is smaller than the sum of its proper divisors (2012816304).

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

1220422848 is an equidigital number, since it uses as much as digits as its factorization.

1220422848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8289 (or 8279 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 33.

The square root of 1220422848 is about 34934.5509202566. The cubic root of 1220422848 is about 1068.6531655229.

The spelling of 1220422848 in words is "one billion, two hundred twenty million, four hundred twenty-two thousand, eight hundred forty-eight".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 64 96 192 857 1714 2571 3428 5142 6856 7417 10284 13712 14834 20568 22251 27424 29668 41136 44502 54848 59336 82272 89004 118672 164544 178008 237344 356016 474688 712032 1424064 6356369 12712738 19069107 25425476 38138214 50850952 76276428 101701904 152552856 203403808 305105712 406807616 610211424 1220422848