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31303033132 = 2271190393923
BaseRepresentation
bin11101001001110011…
…100110000100101100
32222210120011211210111
4131021303212010230
51003102034030012
622214100345404
72155501251160
oct351163460454
988716154714
1031303033132
1112303823118
1260973a5264
132c4b322817
14172d518ca0
15c33217ba7
hex749ce612c

31303033132 has 24 divisors (see below), whose sum is σ = 62611992576. Its totient is φ = 13414315728.

The previous prime is 31303033123. The next prime is 31303033171. The reversal of 31303033132 is 23133030313.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 286323 + ... + 380245.

It is an arithmetic number, because the mean of its divisors is an integer number (2608833024).

Almost surely, 231303033132 is an apocalyptic number.

It is an amenable number.

31303033132 is an abundant number, since it is smaller than the sum of its proper divisors (31308959444).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31303033132 is a wasteful number, since it uses less digits than its factorization.

31303033132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105837 (or 105835 counting only the distinct ones).

The product of its (nonzero) digits is 1458, while the sum is 22.

Adding to 31303033132 its reverse (23133030313), we get a palindrome (54436063445).

The spelling of 31303033132 in words is "thirty-one billion, three hundred three million, thirty-three thousand, one hundred thirty-two".

Divisors: 1 2 4 7 14 28 11903 23806 47612 83321 93923 166642 187846 333284 375692 657461 1314922 2629844 1117965469 2235930938 4471861876 7825758283 15651516566 31303033132