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31010012033 = 71113612631931
BaseRepresentation
bin11100111000010101…
…110011101110000001
32222001010210211102012
4130320111303232001
51002002030341113
622125032102305
72145312516230
oct347025635601
988033724365
1031010012033
1112173386020
126015234995
132c026c9460
141702640b17
15c17636aa8
hex738573b81

31010012033 has 64 divisors (see below), whose sum is σ = 42501279744. Its totient is φ = 21844512000.

The previous prime is 31010012029. The next prime is 31010012071. The reversal of 31010012033 is 33021001013.

It is a cyclic number.

It is not a de Polignac number, because 31010012033 - 22 = 31010012029 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31010011999 and 31010012017.

It is not an unprimeable number, because it can be changed into a prime (31010012083) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 16058078 + ... + 16060008.

It is an arithmetic number, because the mean of its divisors is an integer number (664082496).

Almost surely, 231010012033 is an apocalyptic number.

It is an amenable number.

31010012033 is a deficient number, since it is larger than the sum of its proper divisors (11491267711).

31010012033 is a wasteful number, since it uses less digits than its factorization.

31010012033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2286.

The product of its (nonzero) digits is 54, while the sum is 14.

Adding to 31010012033 its reverse (33021001013), we get a palindrome (64031013046).

The spelling of 31010012033 in words is "thirty-one billion, ten million, twelve thousand, thirty-three".

Divisors: 1 7 11 13 61 77 91 143 263 427 671 793 1001 1841 1931 2893 3419 4697 5551 8723 13517 16043 20251 21241 23933 25103 37609 61061 112301 117791 148687 175721 176473 208559 263263 276133 507853 824537 1235311 1295701 1459913 1531283 1932931 2294149 3554971 5586383 6602089 9069907 10718981 16059043 16844113 30979033 39104681 46214623 72622979 117908791 216853231 340769363 402727429 508360853 2385385541 2819092003 4430001719 31010012033