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47798380 = 22572961193
BaseRepresentation
bin1011011001010…
…1100001101100
310022221102001101
42312111201230
544214022010
64424252444
71120164610
oct266254154
9108842041
1047798380
1124a876a3
1214011124
139b97286
1464c3340
1542e273a
hex2d9586c

47798380 has 96 divisors (see below), whose sum is σ = 121242240. Its totient is φ = 15482880.

The previous prime is 47798321. The next prime is 47798411. The reversal of 47798380 is 8389774.

47798380 is digitally balanced in base 2, because in such base 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 47798380.

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 31 ways as a sum of consecutive naturals, for example, 247564 + ... + 247756.

It is an arithmetic number, because the mean of its divisors is an integer number (1262940).

Almost surely, 247798380 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47798380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60621120).

47798380 is an abundant number, since it is smaller than the sum of its proper divisors (73443860).

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

47798380 is a wasteful number, since it uses less digits than its factorization.

47798380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299 (or 297 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 46.

The square root of 47798380 is about 6913.6372482218. The cubic root of 47798380 is about 362.9145602050.

The spelling of 47798380 in words is "forty-seven million, seven hundred ninety-eight thousand, three hundred eighty".

Divisors: 1 2 4 5 7 10 14 20 28 29 35 58 61 70 116 122 140 145 193 203 244 290 305 386 406 427 580 610 772 812 854 965 1015 1220 1351 1708 1769 1930 2030 2135 2702 3538 3860 4060 4270 5404 5597 6755 7076 8540 8845 11194 11773 12383 13510 17690 22388 23546 24766 27020 27985 35380 39179 47092 49532 55970 58865 61915 78358 82411 111940 117730 123830 156716 164822 195895 235460 247660 329644 341417 391790 412055 682834 783580 824110 1365668 1648220 1707085 2389919 3414170 4779838 6828340 9559676 11949595 23899190 47798380