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2808005412 = 223477170123
BaseRepresentation
bin1010011101011110…
…1100001100100100
321020200202110021110
42213113230030210
521222322133122
61142345145020
7126404436462
oct24727541444
97220673243
102808005412
111211056033
1266448b170
133599a0c84
141c8d09832
151167bb90c
hexa75ec324

2808005412 has 48 divisors (see below), whose sum is σ = 6785759232. Its totient is φ = 903171360.

The previous prime is 2808005407. The next prime is 2808005423. The reversal of 2808005412 is 2145008082.

2808005412 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 2808005412.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4983 + ... + 75105.

It is an arithmetic number, because the mean of its divisors is an integer number (141369984).

Almost surely, 22808005412 is an apocalyptic number.

It is an amenable number.

2808005412 is an abundant number, since it is smaller than the sum of its proper divisors (3977753820).

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

2808005412 is a wasteful number, since it uses less digits than its factorization.

2808005412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70248 (or 70246 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 30.

The square root of 2808005412 is about 52990.6162636367. The cubic root of 2808005412 is about 1410.8017190011.

The spelling of 2808005412 in words is "two billion, eight hundred eight million, five thousand, four hundred twelve".

Divisors: 1 2 3 4 6 12 47 71 94 141 142 188 213 282 284 426 564 852 3337 6674 10011 13348 20022 40044 70123 140246 210369 280492 420738 841476 3295781 4978733 6591562 9887343 9957466 13183124 14936199 19774686 19914932 29872398 39549372 59744796 234000451 468000902 702001353 936001804 1404002706 2808005412