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10002021231 = 34135180627
BaseRepresentation
bin10010101000010101…
…01011101101101111
3221211001120022201210
421110022223231233
5130441004134411
64332254005503
7502600530516
oct112412535557
927731508653
1010002021231
114272975654
121b317a6893
13c35247477
146ac52b67d
153d815bca6
hex2542abb6f

10002021231 has 8 divisors (see below), whose sum is σ = 13336516224. Its totient is φ = 6667770200.

The previous prime is 10002021203. The next prime is 10002021241. The reversal of 10002021231 is 13212020001.

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 10002021231 - 213 = 10002013039 is a prime.

It is a super-2 number, since 2×100020212312 (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 (10002021241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83740 + ... + 164366.

It is an arithmetic number, because the mean of its divisors is an integer number (1667064528).

Almost surely, 210002021231 is an apocalyptic number.

10002021231 is a deficient number, since it is larger than the sum of its proper divisors (3334494993).

10002021231 is an equidigital number, since it uses as much as digits as its factorization.

10002021231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121981.

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

Adding to 10002021231 its reverse (13212020001), we get a palindrome (23214041232).

The spelling of 10002021231 in words is "ten billion, two million, twenty-one thousand, two hundred thirty-one".

Divisors: 1 3 41351 80627 124053 241881 3334007077 10002021231