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31640414606 = 215820207303
BaseRepresentation
bin11101011101111010…
…100110100110001110
310000200002000121011122
4131131322212212032
51004244421231411
622311351520542
72200036041503
oct353572464616
9100602017148
1031640414606
1112467209889
126170389152
132ca31ab328
14176225d4aa
15c52b5c9db
hex75dea698e

31640414606 has 4 divisors (see below), whose sum is σ = 47460621912. Its totient is φ = 15820207302.

The previous prime is 31640414579. The next prime is 31640414609. The reversal of 31640414606 is 60641404613.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 60641404613 = 131514611163.

It is a super-2 number, since 2×316404146062 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31640414609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7910103650 + ... + 7910103653.

It is an arithmetic number, because the mean of its divisors is an integer number (11865155478).

Almost surely, 231640414606 is an apocalyptic number.

31640414606 is a deficient number, since it is larger than the sum of its proper divisors (15820207306).

31640414606 is a wasteful number, since it uses less digits than its factorization.

31640414606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15820207305.

The product of its (nonzero) digits is 41472, while the sum is 35.

The spelling of 31640414606 in words is "thirty-one billion, six hundred forty million, four hundred fourteen thousand, six hundred six".

Divisors: 1 2 15820207303 31640414606