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40002468361 = 79506360359
BaseRepresentation
bin100101010000010101…
…010011101000001001
310211020211200221110021
4211100111103220021
51123411112441421
630213223420441
72614204241122
oct452025235011
9124224627407
1040002468361
1115a68394609
1279048b4721
133a06737c2b
141d16a51049
151091d23341
hex950553a09

40002468361 has 4 divisors (see below), whose sum is σ = 40508828800. Its totient is φ = 39496107924.

The previous prime is 40002468347. The next prime is 40002468367. The reversal of 40002468361 is 16386420004.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 40002468361 - 25 = 40002468329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40002468367) 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, 253180101 + ... + 253180258.

It is an arithmetic number, because the mean of its divisors is an integer number (10127207200).

Almost surely, 240002468361 is an apocalyptic number.

It is an amenable number.

40002468361 is a deficient number, since it is larger than the sum of its proper divisors (506360439).

40002468361 is an equidigital number, since it uses as much as digits as its factorization.

40002468361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 506360438.

The product of its (nonzero) digits is 27648, while the sum is 34.

Adding to 40002468361 its reverse (16386420004), we get a palindrome (56388888365).

The spelling of 40002468361 in words is "forty billion, two million, four hundred sixty-eight thousand, three hundred sixty-one".

Divisors: 1 79 506360359 40002468361