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40312421011 = 1719235426359
BaseRepresentation
bin100101100010110011…
…101011101010010011
310212001102221011120001
4211202303223222103
51130024434433021
630304055030431
72624656632142
oct454263535223
9125042834501
1040312421011
1116107346625
12799066b417
133a55a0bb75
141d45c95759
1510ae14b091
hex962ceba93

40312421011 has 16 divisors (see below), whose sum is σ = 46883750400. Its totient is φ = 34381404288.

The previous prime is 40312420997. The next prime is 40312421027. The reversal of 40312421011 is 11012421304.

It is a cyclic number.

It is not a de Polignac number, because 40312421011 - 25 = 40312420979 is a prime.

It is a super-2 number, since 2×403124210112 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40312421011.

It is not an unprimeable number, because it can be changed into a prime (40312421311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2705751 + ... + 2720608.

It is an arithmetic number, because the mean of its divisors is an integer number (2930234400).

Almost surely, 240312421011 is an apocalyptic number.

40312421011 is a deficient number, since it is larger than the sum of its proper divisors (6571329389).

40312421011 is a wasteful number, since it uses less digits than its factorization.

40312421011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5426418.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 40312421011 its reverse (11012421304), we get a palindrome (51324842315).

The spelling of 40312421011 in words is "forty billion, three hundred twelve million, four hundred twenty-one thousand, eleven".

Divisors: 1 17 19 23 323 391 437 7429 5426359 92248103 103100821 124806257 1752713957 2121706369 2371318883 40312421011