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131331303222 = 23724310388491
BaseRepresentation
bin111101001001111110…
…1001010011100110110
3110112222201000110022120
41322103331022130312
54122431303200342
6140155513340410
712326340441600
oct1722375123466
9415881013276
10131331303222
1150774107a29
1221552707706
13c4cc94ca12
1464dc218170
153639b88aec
hex1e93f4a736

131331303222 has 48 divisors (see below), whose sum is σ = 312652055232. Its totient is φ = 36650592720.

The previous prime is 131331303211. The next prime is 131331303223. The reversal of 131331303222 is 222303133131.

131331303222 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1313313032222 (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 131331303192 and 131331303201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131331303223) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5181604 + ... + 5206887.

It is an arithmetic number, because the mean of its divisors is an integer number (6513584484).

Almost surely, 2131331303222 is an apocalyptic number.

131331303222 is an abundant number, since it is smaller than the sum of its proper divisors (181320752010).

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

131331303222 is a wasteful number, since it uses less digits than its factorization.

131331303222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10388553 (or 10388546 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 131331303222 its reverse (222303133131), we get a palindrome (353634436353).

The spelling of 131331303222 in words is "one hundred thirty-one billion, three hundred thirty-one million, three hundred three thousand, two hundred twenty-two".

Divisors: 1 2 3 6 7 14 21 42 43 49 86 98 129 147 258 294 301 602 903 1806 2107 4214 6321 12642 10388491 20776982 31165473 62330946 72719437 145438874 218158311 436316622 446705113 509036059 893410226 1018072118 1340115339 1527108177 2680230678 3054216354 3126935791 6253871582 9380807373 18761614746 21888550537 43777101074 65665651611 131331303222