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10020241021 = 73659391217
BaseRepresentation
bin10010101010100000…
…01011111001111101
3221212022211222120211
421111100023321331
5131010140203041
64334144312421
7503211433450
oct112520137175
927768758524
1010020241021
11428218a42a
121b37912711
13c38c564cb
146b0b11497
153d9a5a481
hex25540be7d

10020241021 has 8 divisors (see below), whose sum is σ = 11454863040. Its totient is φ = 8586408768.

The previous prime is 10020241009. The next prime is 10020241027. The reversal of 10020241021 is 12014202001.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 10020241021 - 227 = 9886023293 is a prime.

It is a super-2 number, since 2×100202410212 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10020240992 and 10020241010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10020241027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 169996 + ... + 221221.

It is an arithmetic number, because the mean of its divisors is an integer number (1431857880).

Almost surely, 210020241021 is an apocalyptic number.

It is an amenable number.

10020241021 is a deficient number, since it is larger than the sum of its proper divisors (1434622019).

10020241021 is an equidigital number, since it uses as much as digits as its factorization.

10020241021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394883.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 10020241021 its reverse (12014202001), we get a palindrome (22034443022).

The spelling of 10020241021 in words is "ten billion, twenty million, two hundred forty-one thousand, twenty-one".

Divisors: 1 7 3659 25613 391217 2738519 1431463003 10020241021