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1269472668 = 223415634583
BaseRepresentation
bin100101110101010…
…1001110110011100
310021110201220010020
41023222221312130
510044441111133
6325545112140
743313224332
oct11352516634
93243656106
101269472668
115a1647672
122b5188650
13173009c79
14c0855b52
15766b00b3
hex4baa9d9c

1269472668 has 48 divisors (see below), whose sum is σ = 3040402176. Its totient is φ = 412013440.

The previous prime is 1269472667. The next prime is 1269472691. The reversal of 1269472668 is 8662749621.

It is a super-2 number, since 2×12694726682 = 3223121709598076448, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1269472668.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1269472667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 274705 + ... + 279287.

It is an arithmetic number, because the mean of its divisors is an integer number (63341712).

Almost surely, 21269472668 is an apocalyptic number.

It is an amenable number.

1269472668 is an abundant number, since it is smaller than the sum of its proper divisors (1770929508).

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

1269472668 is a wasteful number, since it uses less digits than its factorization.

1269472668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5194 (or 5192 counting only the distinct ones).

The product of its digits is 1741824, while the sum is 51.

The square root of 1269472668 is about 35629.6599478580. The cubic root of 1269472668 is about 1082.7822263162.

The spelling of 1269472668 in words is "one billion, two hundred sixty-nine million, four hundred seventy-two thousand, six hundred sixty-eight".

Divisors: 1 2 3 4 6 12 41 82 123 164 246 492 563 1126 1689 2252 3378 4583 6756 9166 13749 18332 23083 27498 46166 54996 69249 92332 138498 187903 276996 375806 563709 751612 1127418 2254836 2580229 5160458 7740687 10320916 15481374 30962748 105789389 211578778 317368167 423157556 634736334 1269472668