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31514303423 = 311917097507
BaseRepresentation
bin11101010110011001…
…100001101110111111
310000100021201111011002
4131112121201232333
51004020130202143
622251044520515
72163645105431
oct352631415677
9100307644132
1031514303423
1112402003669
1261360b013b
132c83024925
14174d5d2651
15c46a4b5b8
hex756661bbf

31514303423 has 16 divisors (see below), whose sum is σ = 32751697920. Its totient is φ = 30291213600.

The previous prime is 31514303399. The next prime is 31514303437. The reversal of 31514303423 is 32430341513.

It is a cyclic number.

It is not a de Polignac number, because 31514303423 - 210 = 31514302399 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 (31514303473) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4194236 + ... + 4201742.

It is an arithmetic number, because the mean of its divisors is an integer number (2046981120).

Almost surely, 231514303423 is an apocalyptic number.

31514303423 is a deficient number, since it is larger than the sum of its proper divisors (1237394497).

31514303423 is a wasteful number, since it uses less digits than its factorization.

31514303423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8438.

The product of its (nonzero) digits is 12960, while the sum is 29.

Adding to 31514303423 its reverse (32430341513), we get a palindrome (63944644936).

The spelling of 31514303423 in words is "thirty-one billion, five hundred fourteen million, three hundred three thousand, four hundred twenty-three".

Divisors: 1 31 191 709 5921 7507 21979 135419 232717 1433837 4197989 5322463 44448947 164996353 1016590433 31514303423