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213331031032 = 23715724264221
BaseRepresentation
bin1100011010101110000…
…1010011001111111000
3202101122101222020011111
43012223201103033320
511443400220443112
6242000344210104
721261353562460
oct3065341231770
9671571866144
10213331031032
1182522895119
1235418169934
131716a165012
14a47a7baba0
1558389b45a7
hex31ab8533f8

213331031032 has 32 divisors (see below), whose sum is σ = 460049649120. Its totient is φ = 90845239680.

The previous prime is 213331031027. The next prime is 213331031087. The reversal of 213331031032 is 230130133312.

It is a super-2 number, since 2×2133310310322 (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 213331030994 and 213331031012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12123319 + ... + 12140902.

It is an arithmetic number, because the mean of its divisors is an integer number (14376551535).

Almost surely, 2213331031032 is an apocalyptic number.

It is an amenable number.

213331031032 is an abundant number, since it is smaller than the sum of its proper divisors (246718618088).

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

213331031032 is a wasteful number, since it uses less digits than its factorization.

213331031032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24264391 (or 24264387 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 213331031032 its reverse (230130133312), we get a palindrome (443461164344).

The spelling of 213331031032 in words is "two hundred thirteen billion, three hundred thirty-one million, thirty-one thousand, thirty-two".

Divisors: 1 2 4 7 8 14 28 56 157 314 628 1099 1256 2198 4396 8792 24264221 48528442 97056884 169849547 194113768 339699094 679398188 1358796376 3809482697 7618965394 15237930788 26666378879 30475861576 53332757758 106665515516 213331031032