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10303150021 = 531931007249
BaseRepresentation
bin10011001100001110…
…11001011111000101
3222121001012020202221
421212013121133011
5132100101300041
64422212132341
7513215221153
oct114607313705
928531166687
1010303150021
11440795011a
121bb66070b1
13c8274bc98
146da5163d3
154047e02d1
hex2661d97c5

10303150021 has 8 divisors (see below), whose sum is σ = 10551951000. Its totient is φ = 10056364032.

The previous prime is 10303150001. The next prime is 10303150031. The reversal of 10303150021 is 12005130301.

It can be written as a sum of positive squares in 4 ways, for example, as 2344012225 + 7959137796 = 48415^2 + 89214^2 .

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 10303150021 - 223 = 10294761413 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10303149977 and 10303150004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10303150001) 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, 493396 + ... + 513853.

It is an arithmetic number, because the mean of its divisors is an integer number (1318993875).

Almost surely, 210303150021 is an apocalyptic number.

It is an amenable number.

10303150021 is a deficient number, since it is larger than the sum of its proper divisors (248800979).

10303150021 is a wasteful number, since it uses less digits than its factorization.

10303150021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1007495.

The product of its (nonzero) digits is 90, while the sum is 16.

Adding to 10303150021 its reverse (12005130301), we get a palindrome (22308280322).

The spelling of 10303150021 in words is "ten billion, three hundred three million, one hundred fifty thousand, twenty-one".

Divisors: 1 53 193 10229 1007249 53384197 194399057 10303150021