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40404040201 = 721559528911
BaseRepresentation
bin100101101000010001…
…001011101000001001
310212021211022220110101
4211220101023220021
51130221413241301
630321130445401
72630151450400
oct455021135011
9125254286411
1040404040201
1116154033468
1279b7293861
133a6b9a9ac5
141d54104637
1510b71e7701
hex96844ba09

40404040201 has 12 divisors (see below), whose sum is σ = 47030855040. Its totient is φ = 34609754760.

The previous prime is 40404040181. The next prime is 40404040211. The reversal of 40404040201 is 10204040404.

It is a de Polignac number, because none of the positive numbers 2k-40404040201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40404040211) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 188065 + ... + 340846.

It is an arithmetic number, because the mean of its divisors is an integer number (3919237920).

Almost surely, 240404040201 is an apocalyptic number.

It is an amenable number.

40404040201 is a deficient number, since it is larger than the sum of its proper divisors (6626814839).

40404040201 is a wasteful number, since it uses less digits than its factorization.

40404040201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 530484 (or 530477 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 19.

Adding to 40404040201 its reverse (10204040404), we get a palindrome (50608080605).

The spelling of 40404040201 in words is "forty billion, four hundred four million, forty thousand, two hundred one".

Divisors: 1 7 49 1559 10913 76391 528911 3702377 25916639 824572249 5772005743 40404040201