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10202022101 = 73931379957
BaseRepresentation
bin10011000000001011…
…01000000011010101
3222022222220102100102
421200011220003111
5131343204201401
64404200423445
7510546520445
oct114005500325
928288812312
1010202022101
114365859227
121b88777b85
13c67801c8b
146cad10125
153ea9b656b
hex2601680d5

10202022101 has 4 divisors (see below), whose sum is σ = 10203409452. Its totient is φ = 10200634752.

The previous prime is 10202022067. The next prime is 10202022109. The reversal of 10202022101 is 10122020201.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10122020201 = 17595412953.

It can be written as a sum of positive squares in 2 ways, for example, as 6822925201 + 3379096900 = 82601^2 + 58130^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-10202022101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10202022109) 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, 682586 + ... + 697371.

It is an arithmetic number, because the mean of its divisors is an integer number (2550852363).

Almost surely, 210202022101 is an apocalyptic number.

It is an amenable number.

10202022101 is a deficient number, since it is larger than the sum of its proper divisors (1387351).

10202022101 is an equidigital number, since it uses as much as digits as its factorization.

10202022101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1387350.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 10202022101 its reverse (10122020201), we get a palindrome (20324042302).

The spelling of 10202022101 in words is "ten billion, two hundred two million, twenty-two thousand, one hundred one".

Divisors: 1 7393 1379957 10202022101