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1290028914 = 232161944267
BaseRepresentation
bin100110011100100…
…0100011101110010
310022220102020222200
41030321010131302
510120221411124
6332001444030
743653031146
oct11471043562
93286366880
101290028914
116022078a9
12300040616
13177356625
14c3487226
15783c0bc9
hex4ce44772

1290028914 has 24 divisors (see below), whose sum is σ = 2796852240. Its totient is φ = 429734328.

The previous prime is 1290028903. The next prime is 1290028931. The reversal of 1290028914 is 4198200921.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7009 + ... + 51275.

It is an arithmetic number, because the mean of its divisors is an integer number (116535510).

Almost surely, 21290028914 is an apocalyptic number.

1290028914 is an abundant number, since it is smaller than the sum of its proper divisors (1506823326).

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

1290028914 is a wasteful number, since it uses less digits than its factorization.

1290028914 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45894 (or 45891 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 36.

The square root of 1290028914 is about 35916.9725060451. The cubic root of 1290028914 is about 1088.5953665734.

It can be divided in two parts, 12900 and 28914, that added together give a palindrome (41814).

The spelling of 1290028914 in words is "one billion, two hundred ninety million, twenty-eight thousand, nine hundred fourteen".

Divisors: 1 2 3 6 9 18 1619 3238 4857 9714 14571 29142 44267 88534 132801 265602 398403 796806 71668273 143336546 215004819 430009638 645014457 1290028914