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101064641620 = 2255053232081
BaseRepresentation
bin101111000011111101…
…1000000110001010100
3100122212100221201222211
41132013323000301110
53123440022012440
6114232314003204
710205322164635
oct1360773006124
9318770851884
10101064641620
11399523a0108
1217706416504
1396b82604b7
144c6a5d788c
152967938eea
hex1787ec0c54

101064641620 has 12 divisors (see below), whose sum is σ = 212235747444. Its totient is φ = 40425856640.

The previous prime is 101064641569. The next prime is 101064641621. The reversal of 101064641620 is 26146460101.

It can be written as a sum of positive squares in 2 ways, for example, as 80228296516 + 20836345104 = 283246^2 + 144348^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101064641621) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2526616021 + ... + 2526616060.

It is an arithmetic number, because the mean of its divisors is an integer number (17686312287).

Almost surely, 2101064641620 is an apocalyptic number.

101064641620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101064641620 is an abundant number, since it is smaller than the sum of its proper divisors (111171105824).

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

101064641620 is a wasteful number, since it uses less digits than its factorization.

101064641620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5053232090 (or 5053232088 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 31.

The spelling of 101064641620 in words is "one hundred one billion, sixty-four million, six hundred forty-one thousand, six hundred twenty".

Divisors: 1 2 4 5 10 20 5053232081 10106464162 20212928324 25266160405 50532320810 101064641620