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10101704121 = 322322121761
BaseRepresentation
bin10010110100001101…
…11100010110111001
3222002000010201221200
421122012330112321
5131142014012441
64350214324413
7505221032265
oct113206742671
928060121850
1010101704121
11431416a903
121b5b059709
13c4caa9822
146bb8790a5
153e1c9c7b6
hex25a1bc5b9

10101704121 has 18 divisors (see below), whose sum is σ = 15253347018. Its totient is φ = 6441663360.

The previous prime is 10101704117. The next prime is 10101704143. The reversal of 10101704121 is 12140710101.

It can be written as a sum of positive squares in only one way, i.e., 6406401600 + 3695302521 = 80040^2 + 60789^2 .

It is not a de Polignac number, because 10101704121 - 22 = 10101704117 is a prime.

It is a super-2 number, since 2×101017041212 (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10101704094 and 10101704103.

It is not an unprimeable number, because it can be changed into a prime (10101704111) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1056120 + ... + 1065641.

Almost surely, 210101704121 is an apocalyptic number.

It is an amenable number.

10101704121 is a deficient number, since it is larger than the sum of its proper divisors (5151642897).

10101704121 is a wasteful number, since it uses less digits than its factorization.

10101704121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2121813 (or 2121787 counting only the distinct ones).

The product of its (nonzero) digits is 56, while the sum is 18.

The spelling of 10101704121 in words is "ten billion, one hundred one million, seven hundred four thousand, one hundred twenty-one".

Divisors: 1 3 9 23 69 207 529 1587 4761 2121761 6365283 19095849 48800503 146401509 439204527 1122411569 3367234707 10101704121