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1228110994 = 211832572617
BaseRepresentation
bin100100100110011…
…0111110010010010
310011120220111120101
41021030313302102
510003344022434
6321510403014
742301525345
oct11114676222
93146814511
101228110994
11580266a70
122a336046a
131675876c6
14b916a45c
1572c3eb14
hex49337c92

1228110994 has 32 divisors (see below), whose sum is σ = 2042542656. Its totient is φ = 549150720.

The previous prime is 1228110977. The next prime is 1228110997. The reversal of 1228110994 is 4990118221.

It is a super-2 number, since 2×12281109942 = 3016513227167336072, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1228110997) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 467974 + ... + 470590.

It is an arithmetic number, because the mean of its divisors is an integer number (63829458).

Almost surely, 21228110994 is an apocalyptic number.

1228110994 is a deficient number, since it is larger than the sum of its proper divisors (814431662).

1228110994 is a wasteful number, since it uses less digits than its factorization.

1228110994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2970.

The product of its (nonzero) digits is 10368, while the sum is 37.

The square root of 1228110994 is about 35044.4145906306. The cubic root of 1228110994 is about 1070.8924902900.

The spelling of 1228110994 in words is "one billion, two hundred twenty-eight million, one hundred ten thousand, nine hundred ninety-four".

Divisors: 1 2 11 22 83 166 257 514 913 1826 2617 2827 5234 5654 21331 28787 42662 57574 217211 234641 434422 469282 672569 1345138 2389321 4778642 7398259 14796518 55823227 111646454 614055497 1228110994