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1034231221 = 13715534861
BaseRepresentation
bin111101101001010…
…001110110110101
32200002002101112001
4331221101312311
54104230344341
6250343055301
734425551242
oct7551216665
92602071461
101034231221
11490884251
1224a441531
1313636404a
149b4dc5c9
1560be3d31
hex3da51db5

1034231221 has 8 divisors (see below), whose sum is σ = 1042665624. Its totient is φ = 1025809920.

The previous prime is 1034231183. The next prime is 1034231249. The reversal of 1034231221 is 1221324301.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 199656900 + 834574321 = 14130^2 + 28889^2 .

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 1034231221 - 29 = 1034230709 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1034231281) 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, 210331 + ... + 215191.

It is an arithmetic number, because the mean of its divisors is an integer number (130333203).

Almost surely, 21034231221 is an apocalyptic number.

It is an amenable number.

1034231221 is a deficient number, since it is larger than the sum of its proper divisors (8434403).

1034231221 is a wasteful number, since it uses less digits than its factorization.

1034231221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6551.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 1034231221 is about 32159.4654961801. The cubic root of 1034231221 is about 1011.2826304979.

Adding to 1034231221 its reverse (1221324301), we get a palindrome (2255555522).

It can be divided in two parts, 103 and 4231221, that added together give a palindrome (4231324).

The spelling of 1034231221 in words is "one billion, thirty-four million, two hundred thirty-one thousand, two hundred twenty-one".

Divisors: 1 137 1553 4861 212761 665957 7549133 1034231221