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10304404021 = 17718537203
BaseRepresentation
bin10011001100011000…
…01011101000110101
3222121010112221221101
421212030023220311
5132100411412041
64422255050101
7513231663142
oct114614135065
928533487841
1010304404021
11440862728a
121bb6b10931
13c82a9a9b2
146da7613c9
1540498bb31
hex26630ba35

10304404021 has 8 divisors (see below), whose sum is σ = 11064216384. Its totient is φ = 9561666240.

The previous prime is 10304404013. The next prime is 10304404027. The reversal of 10304404021 is 12040440301.

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 10304404021 - 23 = 10304404013 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10304404021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10304404027) 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, 4267395 + ... + 4269808.

It is an arithmetic number, because the mean of its divisors is an integer number (1383027048).

Almost surely, 210304404021 is an apocalyptic number.

It is an amenable number.

10304404021 is a deficient number, since it is larger than the sum of its proper divisors (759812363).

10304404021 is an equidigital number, since it uses as much as digits as its factorization.

10304404021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8537291.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 10304404021 its reverse (12040440301), we get a palindrome (22344844322).

The spelling of 10304404021 in words is "ten billion, three hundred four million, four hundred four thousand, twenty-one".

Divisors: 1 17 71 1207 8537203 145132451 606141413 10304404021