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31332133030 = 25111131725169
BaseRepresentation
bin11101001011100010…
…100110100010100110
32222212120221021100111
4131023202212202212
51003132011224110
622221020203234
72156303510422
oct351342464246
988776837314
1031332133030
1112319199320
1260a509951a
132c54370bb3
141733331b82
15c35a64e8a
hex74b8a68a6

31332133030 has 32 divisors (see below), whose sum is σ = 61532796960. Its totient is φ = 11392043520.

The previous prime is 31332133009. The next prime is 31332133121. The reversal of 31332133030 is 3033123313.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 31332132992 and 31332133010.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 1232286 + ... + 1257454.

It is an arithmetic number, because the mean of its divisors is an integer number (1922899905).

Almost surely, 231332133030 is an apocalyptic number.

31332133030 is a deficient number, since it is larger than the sum of its proper divisors (30200663930).

31332133030 is a wasteful number, since it uses less digits than its factorization.

31332133030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36504.

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

Adding to 31332133030 its reverse (3033123313), we get a palindrome (34365256343).

The spelling of 31332133030 in words is "thirty-one billion, three hundred thirty-two million, one hundred thirty-three thousand, thirty".

Divisors: 1 2 5 10 11 22 55 110 11317 22634 25169 50338 56585 113170 124487 125845 248974 251690 276859 553718 622435 1244870 1384295 2768590 284837573 569675146 1424187865 2848375730 3133213303 6266426606 15666066515 31332133030