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31310002424 = 23291011399613
BaseRepresentation
bin11101001010001110…
…001011100011111000
32222211001021220212102
4131022032023203320
51003110330034144
622214510002532
72155614425621
oct351216134370
988731256772
1031310002424
1112307753268
1260997a6448
132c4c8c2a6c
141730410a48
15c33b42b4e
hex74a38b8f8

31310002424 has 64 divisors (see below), whose sum is σ = 61779564000. Its totient is φ = 14856307200.

The previous prime is 31310002421. The next prime is 31310002441. The reversal of 31310002424 is 42420001313.

It is a super-3 number, since 3×313100024243 (a number of 32 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31310002396 and 31310002405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31310002421) 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, 3252242 + ... + 3261854.

Almost surely, 231310002424 is an apocalyptic number.

It is an amenable number.

31310002424 is a deficient number, since it is larger than the sum of its proper divisors (30469561576).

31310002424 is a wasteful number, since it uses less digits than its factorization.

31310002424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9888 (or 9884 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 31310002424 its reverse (42420001313), we get a palindrome (73730003737).

The spelling of 31310002424 in words is "thirty-one billion, three hundred ten million, two thousand, four hundred twenty-four".

Divisors: 1 2 4 8 29 58 101 116 139 202 232 278 404 556 808 1112 2929 4031 5858 8062 9613 11716 14039 16124 19226 23432 28078 32248 38452 56156 76904 112312 278777 407131 557554 814262 970913 1115108 1336207 1628524 1941826 2230216 2672414 3257048 3883652 5344828 7767304 10689656 28156477 38750003 56312954 77500006 112625908 134956907 155000012 225251816 269913814 310000024 539827628 1079655256 3913750303 7827500606 15655001212 31310002424