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20125305444201 = 36708435148067
BaseRepresentation
bin1001001001101110010011…
…01011101001011101101001
32122020221221010202121101120
410210313021223221131221
510114213111143203301
6110445234312405453
74145001554514426
oct444671153513551
978227833677346
1020125305444201
11645a104291991
1223105040a6889
13b2ca676b27a9
144d80da054d4d
1524d78a9c9e36
hex124dc9ae9769

20125305444201 has 4 divisors (see below), whose sum is σ = 26833740592272. Its totient is φ = 13416870296132.

The previous prime is 20125305444191. The next prime is 20125305444239. The reversal of 20125305444201 is 10244450352102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20125305444201 - 211 = 20125305442153 is a prime.

It is a super-3 number, since 3×201253054442013 (a number of 41 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (20125305444701) 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, 3354217574031 + ... + 3354217574036.

It is an arithmetic number, because the mean of its divisors is an integer number (6708435148068).

Almost surely, 220125305444201 is an apocalyptic number.

It is an amenable number.

20125305444201 is a deficient number, since it is larger than the sum of its proper divisors (6708435148071).

20125305444201 is an equidigital number, since it uses as much as digits as its factorization.

20125305444201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6708435148070.

The product of its (nonzero) digits is 38400, while the sum is 33.

Adding to 20125305444201 its reverse (10244450352102), we get a palindrome (30369755796303).

The spelling of 20125305444201 in words is "twenty trillion, one hundred twenty-five billion, three hundred five million, four hundred forty-four thousand, two hundred one".

Divisors: 1 3 6708435148067 20125305444201