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31012300033 = 11132319149367
BaseRepresentation
bin11100111000011110…
…100010010100000001
32222001022010001221221
4130320132202110001
51002003122100113
622125153115041
72145341125621
oct347036422401
988038101857
1031012300033
11121746a9030
126015b58a81
132c0301a9c0
141702a78881
15c1793998d
hex7387a2501

31012300033 has 32 divisors (see below), whose sum is σ = 38217940992. Its totient is φ = 24761985600.

The previous prime is 31012300009. The next prime is 31012300051. The reversal of 31012300033 is 33000321013.

It is not a de Polignac number, because 31012300033 - 229 = 30475429121 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31012300003) 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, 603516 + ... + 652882.

It is an arithmetic number, because the mean of its divisors is an integer number (1194310656).

Almost surely, 231012300033 is an apocalyptic number.

It is an amenable number.

31012300033 is a deficient number, since it is larger than the sum of its proper divisors (7205640959).

31012300033 is a wasteful number, since it uses less digits than its factorization.

31012300033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49605.

The product of its (nonzero) digits is 162, while the sum is 16.

Adding to 31012300033 its reverse (33000321013), we get a palindrome (64012621046).

The spelling of 31012300033 in words is "thirty-one billion, twelve million, three hundred thousand, thirty-three".

Divisors: 1 11 13 23 143 191 253 299 2101 2483 3289 4393 27313 48323 49367 57109 543037 628199 641771 1135441 7059481 9429097 12489851 14760733 103720067 122578261 162368063 216869231 1348360871 2385561541 2819300003 31012300033