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1030102321 = 3593286697
BaseRepresentation
bin111101011001100…
…001110100110001
32122210022121201211
4331121201310301
54102201233241
6250114400121
734345503523
oct7531416461
92583277654
101030102321
11489514136
12248b90041
13135549901
149ab45a13
156067a781
hex3d661d31

1030102321 has 4 divisors (see below), whose sum is σ = 1030392612. Its totient is φ = 1029812032.

The previous prime is 1030102319. The next prime is 1030102331. The reversal of 1030102321 is 1232010301.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 370177600 + 659924721 = 19240^2 + 25689^2 .

It is a cyclic number.

It is not a de Polignac number, because 1030102321 - 21 = 1030102319 is a prime.

It is a super-2 number, since 2×10301023212 = 2122221583459174082, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1030102331) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 139756 + ... + 146941.

It is an arithmetic number, because the mean of its divisors is an integer number (257598153).

Almost surely, 21030102321 is an apocalyptic number.

It is an amenable number.

1030102321 is a deficient number, since it is larger than the sum of its proper divisors (290291).

1030102321 is an equidigital number, since it uses as much as digits as its factorization.

1030102321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290290.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 1030102321 is about 32095.2071343994. The cubic root of 1030102321 is about 1009.9350744136.

Adding to 1030102321 its reverse (1232010301), we get a palindrome (2262112622).

The spelling of 1030102321 in words is "one billion, thirty million, one hundred two thousand, three hundred twenty-one".

Divisors: 1 3593 286697 1030102321