Search a number
-
+
40680134480 = 245508501681
BaseRepresentation
bin100101111000101110…
…011001011101010000
310220000001211221121102
4211320232121131100
51131303103300410
630404352243532
72640043303106
oct457056313520
9126001757542
1040680134480
111628596a157
127a738405a8
133ab3c577bb
141d7ca53c76
1510d15832a5
hex978b99750

40680134480 has 20 divisors (see below), whose sum is σ = 94581312852. Its totient is φ = 16272053760.

The previous prime is 40680134449. The next prime is 40680134483. The reversal of 40680134480 is 8443108604.

40680134480 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 14925020224 + 25755114256 = 122168^2 + 160484^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40680134483) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 254250761 + ... + 254250920.

Almost surely, 240680134480 is an apocalyptic number.

40680134480 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40680134480 is an abundant number, since it is smaller than the sum of its proper divisors (53901178372).

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

40680134480 is a wasteful number, since it uses less digits than its factorization.

40680134480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 508501694 (or 508501688 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 38.

The spelling of 40680134480 in words is "forty billion, six hundred eighty million, one hundred thirty-four thousand, four hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 40 80 508501681 1017003362 2034006724 2542508405 4068013448 5085016810 8136026896 10170033620 20340067240 40680134480