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31434540141 = 341478236607
BaseRepresentation
bin11101010001101001…
…010000010001101101
310000010201122002111110
4131101221100101231
51003334220241031
622235115142233
72161656116424
oct352151202155
9100121562443
1031434540141
1112370a842a4
126113444979
132c6c648214
141742b8c2bb
15c3ea42c46
hex751a5046d

31434540141 has 32 divisors (see below), whose sum is σ = 43908415488. Its totient is φ = 19982885760.

The previous prime is 31434540133. The next prime is 31434540199. The reversal of 31434540141 is 14104543413.

It is not a de Polignac number, because 31434540141 - 23 = 31434540133 is a prime.

It is a super-2 number, since 2×314345401412 (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 31434540099 and 31434540108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31434540341) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4754460 + ... + 4761066.

It is an arithmetic number, because the mean of its divisors is an integer number (1372137984).

Almost surely, 231434540141 is an apocalyptic number.

It is an amenable number.

31434540141 is a deficient number, since it is larger than the sum of its proper divisors (12473875347).

31434540141 is a wasteful number, since it uses less digits than its factorization.

31434540141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7521.

The product of its (nonzero) digits is 11520, while the sum is 30.

The spelling of 31434540141 in words is "thirty-one billion, four hundred thirty-four million, five hundred forty thousand, one hundred forty-one".

Divisors: 1 3 41 47 123 141 823 1927 2469 5781 6607 19821 33743 38681 101229 116043 270887 310529 812661 931587 1585921 4757763 5437561 12731689 16312683 38195067 222940001 255565367 668820003 766696101 10478180047 31434540141