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31342013132 = 2237330764037
BaseRepresentation
bin11101001100001000…
…010010101011001100
32222220021112020022012
4131030020102223030
51003142023410012
622222012040352
72156453500403
oct351410225314
988807466265
1031342013132
11123238273a1
1260a84630b8
132c56420001
14173478463a
15c36867622
hex74c212acc

31342013132 has 24 divisors (see below), whose sum is σ = 56348829264. Its totient is φ = 15242617152.

The previous prime is 31342013041. The next prime is 31342013189. The reversal of 31342013132 is 23131024313.

It is a junction number, because it is equal to n+sod(n) for n = 31342013098 and 31342013107.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 457418 + ... + 521454.

It is an arithmetic number, because the mean of its divisors is an integer number (2347867886).

Almost surely, 231342013132 is an apocalyptic number.

It is an amenable number.

31342013132 is a deficient number, since it is larger than the sum of its proper divisors (25006816132).

31342013132 is a wasteful number, since it uses less digits than its factorization.

31342013132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67385 (or 67383 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 31342013132 its reverse (23131024313), we get a palindrome (54473037445).

The spelling of 31342013132 in words is "thirty-one billion, three hundred forty-two million, thirteen thousand, one hundred thirty-two".

Divisors: 1 2 4 37 74 148 3307 6614 13228 64037 122359 128074 244718 256148 489436 2369369 4738738 9477476 211770359 423540718 847081436 7835503283 15671006566 31342013132