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31415250343 = 271115923433
BaseRepresentation
bin11101010000011111…
…101010110110100111
310000002101100001212111
4131100133222312213
51003314301002333
622233145501451
72161333136101
oct352037526647
9100071301774
1031415250343
11123610a9614
126108aa1887
132c68653139
1417403aa571
15c3ced24cd
hex7507eada7

31415250343 has 4 divisors (see below), whose sum is σ = 31531174048. Its totient is φ = 31299326640.

The previous prime is 31415250341. The next prime is 31415250371. The reversal of 31415250343 is 34305251413.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34305251413 = 56360932951.

It is a cyclic number.

It is not a de Polignac number, because 31415250343 - 21 = 31415250341 is a prime.

It is a super-2 number, since 2×314152503432 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31415250341) 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, 57961446 + ... + 57961987.

It is an arithmetic number, because the mean of its divisors is an integer number (7882793512).

Almost surely, 231415250343 is an apocalyptic number.

31415250343 is a deficient number, since it is larger than the sum of its proper divisors (115923705).

31415250343 is a wasteful number, since it uses less digits than its factorization.

31415250343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115923704.

The product of its (nonzero) digits is 21600, while the sum is 31.

The spelling of 31415250343 in words is "thirty-one billion, four hundred fifteen million, two hundred fifty thousand, three hundred forty-three".

Divisors: 1 271 115923433 31415250343