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31420114143 = 3111489639439
BaseRepresentation
bin11101010000110010…
…001110010011011111
310000002201111011202020
4131100302032103133
51003322022123033
622233442031223
72161422364215
oct352062162337
9100081434666
1031420114143
1112363920890
12610a648513
132c69666c22
141740cb4cb5
15c3d6436b3
hex750c8e4df

31420114143 has 16 divisors (see below), whose sum is σ = 45732748800. Its totient is φ = 19029674880.

The previous prime is 31420114111. The next prime is 31420114157. The reversal of 31420114143 is 34141102413.

It is not a de Polignac number, because 31420114143 - 25 = 31420114111 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31421114143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 270583 + ... + 368856.

It is an arithmetic number, because the mean of its divisors is an integer number (2858296800).

Almost surely, 231420114143 is an apocalyptic number.

31420114143 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

31420114143 is a deficient number, since it is larger than the sum of its proper divisors (14312634657).

31420114143 is a wasteful number, since it uses less digits than its factorization.

31420114143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 640942.

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 31420114143 its reverse (34141102413), we get a palindrome (65561216556).

The spelling of 31420114143 in words is "thirty-one billion, four hundred twenty million, one hundred fourteen thousand, one hundred forty-three".

Divisors: 1 3 11 33 1489 4467 16379 49137 639439 1918317 7033829 21101487 952124671 2856374013 10473371381 31420114143