Search a number
-
+
1444690026 = 2331317911497
BaseRepresentation
bin101011000011100…
…0011100001101010
310201200102212011000
41112013003201222
510424320040101
6355204415430
750541443163
oct12607034152
93650385130
101444690026
11681542aaa
123439a7576
131a03c7c90
14d9c2676a
1586c71486
hex561c386a

1444690026 has 64 divisors (see below), whose sum is σ = 3476995200. Its totient is φ = 441998208.

The previous prime is 1444690021. The next prime is 1444690043. The reversal of 1444690026 is 6200964441.

It is not an unprimeable number, because it can be changed into a prime (1444690021) 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, 119910 + ... + 131406.

It is an arithmetic number, because the mean of its divisors is an integer number (54328050).

Almost surely, 21444690026 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1444690026, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1738497600).

1444690026 is an abundant number, since it is smaller than the sum of its proper divisors (2032305174).

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

1444690026 is a wasteful number, since it uses less digits than its factorization.

1444690026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11700 (or 11694 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 1444690026 is about 38009.0782050815. The cubic root of 1444690026 is about 1130.4678737063.

The spelling of 1444690026 in words is "one billion, four hundred forty-four million, six hundred ninety thousand, twenty-six".

Divisors: 1 2 3 6 9 13 18 26 27 39 54 78 117 179 234 351 358 537 702 1074 1611 2327 3222 4654 4833 6981 9666 11497 13962 20943 22994 34491 41886 62829 68982 103473 125658 149461 206946 298922 310419 448383 620838 896766 1345149 2057963 2690298 4035447 4115926 6173889 8070894 12347778 18521667 26753519 37043334 53507038 55565001 80260557 111130002 160521114 240781671 481563342 722345013 1444690026