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210331320132 = 2231717912974441
BaseRepresentation
bin1100001111100010111…
…0010011111101000100
3202002220100111010101210
43003320232103331010
511421224304221012
6240342550051420
721124130502603
oct3037056237504
9662810433353
10210331320132
11812236019aa
123491b649b70
1316aac85225b
14a27424ba3a
15571047b23c
hex30f8b93f44

210331320132 has 96 divisors (see below), whose sum is σ = 523065755520. Its totient is φ = 65552302080.

The previous prime is 210331320131. The next prime is 210331320163. The reversal of 210331320132 is 231023133012.

It is a junction number, because it is equal to n+sod(n) for n = 210331320099 and 210331320108.

It is not an unprimeable number, because it can be changed into a prime (210331320131) 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, 47359032 + ... + 47363472.

It is an arithmetic number, because the mean of its divisors is an integer number (5448601620).

Almost surely, 2210331320132 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 210331320132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (261532877760).

210331320132 is an abundant number, since it is smaller than the sum of its proper divisors (312734435388).

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

210331320132 is a wasteful number, since it uses less digits than its factorization.

210331320132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5941 (or 5939 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 210331320132 its reverse (231023133012), we get a palindrome (441354453144).

The spelling of 210331320132 in words is "two hundred ten billion, three hundred thirty-one million, three hundred twenty thousand, one hundred thirty-two".

Divisors: 1 2 3 4 6 12 17 34 51 68 102 179 204 358 537 716 1074 1297 2148 2594 3043 3891 4441 5188 6086 7782 8882 9129 12172 13323 15564 17764 18258 22049 26646 36516 44098 53292 66147 75497 88196 132294 150994 226491 232163 264588 301988 452982 464326 696489 794939 905964 928652 1392978 1589878 2384817 2785956 3179756 3946771 4769634 5759977 7893542 9539268 11519954 11840313 13513963 15787084 17279931 23039908 23680626 27027926 34559862 40541889 47361252 54055852 69119724 81083778 97919609 162167556 195839218 293758827 391678436 587517654 1031035883 1175035308 2062071766 3093107649 4124143532 6186215298 12372430596 17527610011 35055220022 52582830033 70110440044 105165660066 210331320132