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40304401513 = 371089308149
BaseRepresentation
bin100101100010010101…
…000101110001101001
310212000212211201212121
4211202111011301221
51130020411322023
630303211111241
72624531521525
oct454225056151
9125025751777
1040304401513
1116102869442
127989a42521
133a541618bc
141d44ba8d85
1510ad5b4d5d
hex962545c69

40304401513 has 4 divisors (see below), whose sum is σ = 41393709700. Its totient is φ = 39215093328.

The previous prime is 40304401441. The next prime is 40304401547. The reversal of 40304401513 is 31510440304.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 33400121049 + 6904280464 = 182757^2 + 83092^2 .

It is a cyclic number.

It is not a de Polignac number, because 40304401513 - 29 = 40304401001 is a prime.

It is a super-2 number, since 2×403044015132 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40304801513) 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, 544654038 + ... + 544654111.

It is an arithmetic number, because the mean of its divisors is an integer number (10348427425).

Almost surely, 240304401513 is an apocalyptic number.

It is an amenable number.

40304401513 is a deficient number, since it is larger than the sum of its proper divisors (1089308187).

40304401513 is a wasteful number, since it uses less digits than its factorization.

40304401513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1089308186.

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 40304401513 its reverse (31510440304), we get a palindrome (71814841817).

The spelling of 40304401513 in words is "forty billion, three hundred four million, four hundred one thousand, five hundred thirteen".

Divisors: 1 37 1089308149 40304401513