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1030144421 = 4339196113
BaseRepresentation
bin111101011001101…
…100000110100101
32122210101202111002
4331121230012211
54102204110141
6250115323045
734346040335
oct7531540645
92583352432
101030144421
11489542829
12248bb0485
13135562b17
149ab570c5
1560687e9b
hex3d66c1a5

1030144421 has 8 divisors (see below), whose sum is σ = 1054542720. Its totient is φ = 1005766272.

The previous prime is 1030144399. The next prime is 1030144433. The reversal of 1030144421 is 1244410301.

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 1030144421 - 210 = 1030143397 is a prime.

It is a super-2 number, since 2×10301444212 = 2122395056234850482, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1030144393 and 1030144402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1030144471) 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, 165461 + ... + 171573.

It is an arithmetic number, because the mean of its divisors is an integer number (131817840).

Almost surely, 21030144421 is an apocalyptic number.

It is an amenable number.

1030144421 is a deficient number, since it is larger than the sum of its proper divisors (24398299).

1030144421 is an equidigital number, since it uses as much as digits as its factorization.

1030144421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10075.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 1030144421 is about 32095.8629888651. The cubic root of 1030144421 is about 1009.9488328162.

Adding to 1030144421 its reverse (1244410301), we get a palindrome (2274554722).

The spelling of 1030144421 in words is "one billion, thirty million, one hundred forty-four thousand, four hundred twenty-one".

Divisors: 1 43 3919 6113 168517 262859 23956847 1030144421