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40223220231 = 393714309221
BaseRepresentation
bin100101011101011111…
…011010001000000111
310211211020002022002110
4211131133122020013
51124334121021411
630251151112103
72622524505435
oct453537321007
9124736068073
1040223220231
1116070a60777
127966812633
133a403a993c
141d380b5d55
1510a63cb2a6
hex95d7da207

40223220231 has 8 divisors (see below), whose sum is σ = 53688200944. Its totient is φ = 26786859840.

The previous prime is 40223220217. The next prime is 40223220269. The reversal of 40223220231 is 13202232204.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40223220231 - 29 = 40223219719 is a prime.

It is a super-2 number, since 2×402232202312 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40223220198 and 40223220207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40223220731) 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 7 ways as a sum of consecutive naturals, for example, 7151800 + ... + 7157421.

It is an arithmetic number, because the mean of its divisors is an integer number (6711025118).

Almost surely, 240223220231 is an apocalyptic number.

40223220231 is a deficient number, since it is larger than the sum of its proper divisors (13464980713).

40223220231 is a wasteful number, since it uses less digits than its factorization.

40223220231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14310161.

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 40223220231 its reverse (13202232204), we get a palindrome (53425452435).

The spelling of 40223220231 in words is "forty billion, two hundred twenty-three million, two hundred twenty thousand, two hundred thirty-one".

Divisors: 1 3 937 2811 14309221 42927663 13407740077 40223220231