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442031103132 = 223172127459949
BaseRepresentation
bin1100110111010110001…
…10110101110010011100
31120020221220111122012020
412123223012311302130
524220234430300012
6535022152340140
743635641245203
oct6335306656234
91506856448166
10442031103132
11160512041273
12718033a4650
13328b6438078
141757440423a
15b771888a8c
hex66eb1b5c9c

442031103132 has 36 divisors (see below), whose sum is σ = 1095645730200. Its totient is φ = 138676423424.

The previous prime is 442031103131. The next prime is 442031103193. The reversal of 442031103132 is 231301130244.

It is a happy number.

It is a super-2 number, since 2×4420311031322 (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442031103131) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 63726507 + ... + 63733442.

Almost surely, 2442031103132 is an apocalyptic number.

It is an amenable number.

442031103132 is an abundant number, since it is smaller than the sum of its proper divisors (653614627068).

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

442031103132 is a wasteful number, since it uses less digits than its factorization.

442031103132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127459990 (or 127459971 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 442031103132 its reverse (231301130244), we get a palindrome (673332233376).

The spelling of 442031103132 in words is "four hundred forty-two billion, thirty-one million, one hundred three thousand, one hundred thirty-two".

Divisors: 1 2 3 4 6 12 17 34 51 68 102 204 289 578 867 1156 1734 3468 127459949 254919898 382379847 509839796 764759694 1529519388 2166819133 4333638266 6500457399 8667276532 13000914798 26001829596 36835925261 73671850522 110507775783 147343701044 221015551566 442031103132