Search a number
-
+
3020870838 = 2319223331359
BaseRepresentation
bin1011010000001110…
…1101010010110110
321210112022010202010
42310003231102312
522141320331323
61215431425050
7134600656416
oct26403552266
97715263663
103020870838
111310225a77
12703825186
13391b1114b
142092ba646
1512a317c93
hexb40ed4b6

3020870838 has 64 divisors (see below), whose sum is σ = 6425395200. Its totient is φ = 944174880.

The previous prime is 3020870833. The next prime is 3020870851. The reversal of 3020870838 is 8380780203.

It is a happy number.

3020870838 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 junction number, because it is equal to n+sod(n) for n = 3020870796 and 3020870805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3020870833) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8414503 + ... + 8414861.

It is an arithmetic number, because the mean of its divisors is an integer number (100396800).

Almost surely, 23020870838 is an apocalyptic number.

3020870838 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

3020870838 is an abundant number, since it is smaller than the sum of its proper divisors (3404524362).

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

3020870838 is a wasteful number, since it uses less digits than its factorization.

3020870838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 937.

The product of its (nonzero) digits is 64512, while the sum is 39.

The square root of 3020870838 is about 54962.4493449846. The cubic root of 3020870838 is about 1445.5863949856.

The spelling of 3020870838 in words is "three billion, twenty million, eight hundred seventy thousand, eight hundred thirty-eight".

Divisors: 1 2 3 6 19 38 57 114 223 331 359 446 662 669 718 993 1077 1338 1986 2154 4237 6289 6821 8474 12578 12711 13642 18867 20463 25422 37734 40926 73813 80057 118829 147626 160114 221439 237658 240171 356487 442878 480342 712974 1402447 1521083 2257751 2804894 3042166 4207341 4515502 4563249 6773253 8414682 9126498 13546506 26498867 52997734 79496601 158993202 503478473 1006956946 1510435419 3020870838