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142311064660 = 22551011394933
BaseRepresentation
bin1000010010001001100…
…1101000010001010100
3111121022220101010110121
42010202121220101110
54312423113032120
6145213220001324
713165413043102
oct2044231502124
9447286333417
10142311064660
1155398982236
12236b7830244
131055c60c48b
146c6053ac72
153a7da7b5aa
hex2122668454

142311064660 has 24 divisors (see below), whose sum is σ = 298912037256. Its totient is φ = 56913225600.

The previous prime is 142311064633. The next prime is 142311064661. The reversal of 142311064660 is 66460113241.

It can be written as a sum of positive squares in 4 ways, for example, as 8614067344 + 133696997316 = 92812^2 + 365646^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142311064661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 595447 + ... + 799486.

It is an arithmetic number, because the mean of its divisors is an integer number (12454668219).

Almost surely, 2142311064660 is an apocalyptic number.

142311064660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142311064660 is an abundant number, since it is smaller than the sum of its proper divisors (156600972596).

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

142311064660 is a wasteful number, since it uses less digits than its factorization.

142311064660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1400043 (or 1400041 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 34.

The spelling of 142311064660 in words is "one hundred forty-two billion, three hundred eleven million, sixty-four thousand, six hundred sixty".

Divisors: 1 2 4 5 10 20 5101 10202 20404 25505 51010 102020 1394933 2789866 5579732 6974665 13949330 27898660 7115553233 14231106466 28462212932 35577766165 71155532330 142311064660