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31444201501412 = 22721131419730969
BaseRepresentation
bin1110010011001001011000…
…11101011111001011100100
311010100000222110121110212212
413021210230131133023210
513110140211041021122
6150513133341302552
76423524424533300
oct711445435371344
9133300873543785
1031444201501412
11a023457aa95a7
12363a11b564a58
1314712386ab88b
147a9c9c16ad00
15397e086e9ce2
hex1c992c75f2e4

31444201501412 has 36 divisors (see below), whose sum is σ = 64577882901420. Its totient is φ = 13356828946944.

The previous prime is 31444201501409. The next prime is 31444201501523. The reversal of 31444201501412 is 21410510244413.

It can be written as a sum of positive squares in 2 ways, for example, as 14126818376356 + 17317383125056 = 3758566^2 + 4161416^2 .

It is a super-2 number, since 2×314442015014122 (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 709843337 + ... + 709887632.

It is an arithmetic number, because the mean of its divisors is an integer number (1793830080595).

Almost surely, 231444201501412 is an apocalyptic number.

It is an amenable number.

31444201501412 is an abundant number, since it is smaller than the sum of its proper divisors (33133681400008).

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

31444201501412 is a wasteful number, since it uses less digits than its factorization.

31444201501412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1419731100 (or 1419731091 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 32.

Adding to 31444201501412 its reverse (21410510244413), we get a palindrome (52854711745825).

The spelling of 31444201501412 in words is "thirty-one trillion, four hundred forty-four billion, two hundred one million, five hundred one thousand, four hundred twelve".

Divisors: 1 2 4 7 14 28 49 98 113 196 226 452 791 1582 3164 5537 11074 22148 1419730969 2839461938 5678923876 9938116783 19876233566 39752467132 69566817481 139133634962 160429599497 278267269924 320859198994 641718397988 1123007196479 2246014392958 4492028785916 7861050375353 15722100750706 31444201501412