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31342010423 = 37338395931
BaseRepresentation
bin11101001100001000…
…010010000000110111
32222220021112002120212
4131030020102000313
51003142023313143
622222012020035
72156453456453
oct351410220067
988807462525
1031342010423
1112323825359
1260a846161b
132c5641b9c9
141734783663
15c36866918
hex74c212037

31342010423 has 4 divisors (see below), whose sum is σ = 31350410088. Its totient is φ = 31333610760.

The previous prime is 31342010417. The next prime is 31342010437. The reversal of 31342010423 is 32401024313.

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

It is a cyclic number.

It is not a de Polignac number, because 31342010423 - 222 = 31337816119 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31342010473) 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, 4194233 + ... + 4201698.

It is an arithmetic number, because the mean of its divisors is an integer number (7837602522).

Almost surely, 231342010423 is an apocalyptic number.

31342010423 is a deficient number, since it is larger than the sum of its proper divisors (8399665).

31342010423 is an equidigital number, since it uses as much as digits as its factorization.

31342010423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8399664.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 31342010423 its reverse (32401024313), we get a palindrome (63743034736).

The spelling of 31342010423 in words is "thirty-one billion, three hundred forty-two million, ten thousand, four hundred twenty-three".

Divisors: 1 3733 8395931 31342010423