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31322332001 = 131293816047
BaseRepresentation
bin11101001010111101…
…001101101101100001
32222211220111022212102
4131022331031231201
51003122004111001
622220030140145
72156124300122
oct351275155541
988756438772
1031322332001
11123137046a4
1260a1951655
132c5231ba7c
141731d00049
15c34c7ae6b
hex74af4db61

31322332001 has 8 divisors (see below), whose sum is σ = 31669190784. Its totient is φ = 30977106160.

The previous prime is 31322331979. The next prime is 31322332003. The reversal of 31322332001 is 10023322313.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-31322332001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31322332003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 369641 + ... + 446406.

It is an arithmetic number, because the mean of its divisors is an integer number (3958648848).

Almost surely, 231322332001 is an apocalyptic number.

It is an amenable number.

31322332001 is a deficient number, since it is larger than the sum of its proper divisors (346858783).

31322332001 is a wasteful number, since it uses less digits than its factorization.

31322332001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 816471.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 31322332001 its reverse (10023322313), we get a palindrome (41345654314).

The spelling of 31322332001 in words is "thirty-one billion, three hundred twenty-two million, three hundred thirty-two thousand, one".

Divisors: 1 131 293 38383 816047 106902157 239101771 31322332001