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20340603101 = 721331931873
BaseRepresentation
bin10010111100011001…
…001111100011011101
31221111120102200212102
4102330121033203131
5313124143244401
613202213414445
71320026162600
oct227431174335
957446380772
1020340603101
118698816195
123b3803a425
131bc2120930
14dad628337
157e0aea56b
hex4bc64f8dd

20340603101 has 12 divisors (see below), whose sum is σ = 25481635452. Its totient is φ = 16093663488.

The previous prime is 20340603091. The next prime is 20340603137. The reversal of 20340603101 is 10130604302.

It can be written as a sum of positive squares in 2 ways, for example, as 13380705625 + 6959897476 = 115675^2 + 83426^2 .

It is a de Polignac number, because none of the positive numbers 2k-20340603101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20340603181) 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, 15965300 + ... + 15966573.

It is an arithmetic number, because the mean of its divisors is an integer number (2123469621).

Almost surely, 220340603101 is an apocalyptic number.

It is an amenable number.

20340603101 is a deficient number, since it is larger than the sum of its proper divisors (5141032351).

20340603101 is a wasteful number, since it uses less digits than its factorization.

20340603101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31931900 (or 31931893 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

The spelling of 20340603101 in words is "twenty billion, three hundred forty million, six hundred three thousand, one hundred one".

Divisors: 1 7 13 49 91 637 31931873 223523111 415114349 1564661777 2905800443 20340603101