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161222268482 = 21125324872
BaseRepresentation
bin1001011000100110011…
…0001001011001000010
3120102010212010211010222
42112021212021121002
510120140400042412
6202021532423042
714435144446112
oct2261146113102
9512125124128
10161222268482
1162412849600
12272b5017a82
1312284559c02
147b35d9d042
1542d8e26072
hex2589989642

161222268482 has 54 divisors (see below), whose sum is σ = 271484384409. Its totient is φ = 71752515120.

The previous prime is 161222268463. The next prime is 161222268497. The reversal of 161222268482 is 284862222161.

161222268482 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 152928705721 + 8293562761 = 391061^2 + 91069^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=283921.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 331051643 + ... + 331052129.

Almost surely, 2161222268482 is an apocalyptic number.

161222268482 is a deficient number, since it is larger than the sum of its proper divisors (110262115927).

161222268482 is an frugal number, since it uses more digits than its factorization.

161222268482 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1104 (or 553 counting only the distinct ones).

The product of its digits is 294912, while the sum is 44.

The spelling of 161222268482 in words is "one hundred sixty-one billion, two hundred twenty-two million, two hundred sixty-eight thousand, four hundred eighty-two".

Divisors: 1 2 11 22 53 106 121 242 487 583 974 1166 2809 5357 5618 6413 10714 12826 25811 30899 51622 58927 61798 117854 237169 283921 339889 474338 567842 679778 1367983 2608859 2735966 3123131 5217718 6246262 12569957 15047813 25139914 28697449 30095626 57394898 138269527 165525943 276539054 331051886 666207721 1332415442 1520964797 3041929594 7328284931 14656569862 80611134241 161222268482