Search a number
-
+
1349013380 = 2251113471683
BaseRepresentation
bin101000001101000…
…0100111110000100
310111000101222110112
41100122010332010
510230321412010
6341510012152
745300265421
oct12032047604
93430358415
101349013380
116325347a0
12317947058
13186639290
14cb23cd48
157d672a05
hex50684f84

1349013380 has 48 divisors (see below), whose sum is σ = 3328202304. Its totient is φ = 452814720.

The previous prime is 1349013373. The next prime is 1349013383. The reversal of 1349013380 is 833109431.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1349013383) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 232982 + ... + 238701.

It is an arithmetic number, because the mean of its divisors is an integer number (69337548).

Almost surely, 21349013380 is an apocalyptic number.

1349013380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1349013380 is an abundant number, since it is smaller than the sum of its proper divisors (1979188924).

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

1349013380 is a wasteful number, since it uses less digits than its factorization.

1349013380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 471716 (or 471714 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 1349013380 is about 36728.9174901739. The cubic root of 1349013380 is about 1104.9401440384.

The spelling of 1349013380 in words is "one billion, three hundred forty-nine million, thirteen thousand, three hundred eighty".

Divisors: 1 2 4 5 10 11 13 20 22 26 44 52 55 65 110 130 143 220 260 286 572 715 1430 2860 471683 943366 1886732 2358415 4716830 5188513 6131879 9433660 10377026 12263758 20754052 24527516 25942565 30659395 51885130 61318790 67450669 103770260 122637580 134901338 269802676 337253345 674506690 1349013380