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2890688904 = 233346728657
BaseRepresentation
bin1010110001001100…
…0110100110001000
321110110100012201000
42230103012212020
521410004021104
61154501255000
7131430310305
oct25423064610
97413305630
102890688904
11125379a3a4
12688104460
13370b6090c
141d5cb00ac
1511dba0639
hexac4c6988

2890688904 has 64 divisors (see below), whose sum is σ = 8047166400. Its totient is φ = 961466112.

The previous prime is 2890688881. The next prime is 2890688963. The reversal of 2890688904 is 4098860982.

It is a super-3 number, since 3×28906889043 (a number of 29 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

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 15 ways as a sum of consecutive naturals, for example, 86544 + ... + 115200.

It is an arithmetic number, because the mean of its divisors is an integer number (125736975).

Almost surely, 22890688904 is an apocalyptic number.

2890688904 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2890688904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4023583200).

2890688904 is an abundant number, since it is smaller than the sum of its proper divisors (5156477496).

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

2890688904 is a wasteful number, since it uses less digits than its factorization.

2890688904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29139 (or 29129 counting only the distinct ones).

The product of its (nonzero) digits is 1990656, while the sum is 54.

The square root of 2890688904 is about 53765.1272108604. The cubic root of 2890688904 is about 1424.5153010814.

The spelling of 2890688904 in words is "two billion, eight hundred ninety million, six hundred eighty-eight thousand, nine hundred four".

Divisors: 1 2 3 4 6 8 9 12 18 24 27 36 54 72 108 216 467 934 1401 1868 2802 3736 4203 5604 8406 11208 12609 16812 25218 28657 33624 50436 57314 85971 100872 114628 171942 229256 257913 343884 515826 687768 773739 1031652 1547478 2063304 3094956 6189912 13382819 26765638 40148457 53531276 80296914 107062552 120445371 160593828 240890742 321187656 361336113 481781484 722672226 963562968 1445344452 2890688904