Search a number
-
+
1469534440 = 2351122714713
BaseRepresentation
bin101011110010111…
…0101000011101000
310210102012002021111
41113211311003220
511002200100230
6401453120104
751262556653
oct12745650350
93712162244
101469534440
11694571a80
12350189034
131a55b640a
14dd25289a
158902c92a
hex579750e8

1469534440 has 64 divisors (see below), whose sum is σ = 3623175360. Its totient is φ = 531985920.

The previous prime is 1469534419. The next prime is 1469534441. The reversal of 1469534440 is 444359641.

It is a super-2 number, since 2×14695344402 = 4319062940692227200, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 1469534393 and 1469534402.

It is not an unprimeable number, because it can be changed into a prime (1469534441) 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, 92524 + ... + 107236.

It is an arithmetic number, because the mean of its divisors is an integer number (56612115).

Almost surely, 21469534440 is an apocalyptic number.

1469534440 is a gapful number since it is divisible by the number (10) 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 1469534440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1811587680).

1469534440 is an abundant number, since it is smaller than the sum of its proper divisors (2153640920).

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

1469534440 is a wasteful number, since it uses less digits than its factorization.

1469534440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14962 (or 14958 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 40.

The square root of 1469534440 is about 38334.5071704333. The cubic root of 1469534440 is about 1136.9113170191.

The spelling of 1469534440 in words is "one billion, four hundred sixty-nine million, five hundred thirty-four thousand, four hundred forty".

Divisors: 1 2 4 5 8 10 11 20 22 40 44 55 88 110 220 227 440 454 908 1135 1816 2270 2497 4540 4994 9080 9988 12485 14713 19976 24970 29426 49940 58852 73565 99880 117704 147130 161843 294260 323686 588520 647372 809215 1294744 1618430 3236860 3339851 6473720 6679702 13359404 16699255 26718808 33398510 36738361 66797020 73476722 133594040 146953444 183691805 293906888 367383610 734767220 1469534440