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10021002231 = 37434495739
BaseRepresentation
bin10010101010100110…
…00101101111110111
3221212101021122202210
421111103011233313
5131010334032411
64334212504503
7503221053642
oct112523055767
927771248683
1010021002231
11428265a329
121b3801b133
13c39161b26
146b0c6ca59
153d9b5aca6
hex2554c5bf7

10021002231 has 8 divisors (see below), whose sum is σ = 13379322240. Its totient is φ = 6671675192.

The previous prime is 10021002151. The next prime is 10021002239. The reversal of 10021002231 is 13220012001.

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

It is a cyclic number.

It is not a de Polignac number, because 10021002231 - 29 = 10021001719 is a prime.

It is a super-2 number, since 2×100210022312 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10021002239) 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, 2245641 + ... + 2250098.

It is an arithmetic number, because the mean of its divisors is an integer number (1672415280).

Almost surely, 210021002231 is an apocalyptic number.

10021002231 is a deficient number, since it is larger than the sum of its proper divisors (3358320009).

10021002231 is an equidigital number, since it uses as much as digits as its factorization.

10021002231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4496485.

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 10021002231 its reverse (13220012001), we get a palindrome (23241014232).

The spelling of 10021002231 in words is "ten billion, twenty-one million, two thousand, two hundred thirty-one".

Divisors: 1 3 743 2229 4495739 13487217 3340334077 10021002231