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3030121012 = 22757530253
BaseRepresentation
bin1011010010011011…
…1111101000110100
321211011201002121011
42310212333220310
522201202333022
61220402002004
7135042414022
oct26446775064
97734632534
103030121012
111315473846
12706946304
133939cc619
1420a607712
1512b043977
hexb49bfa34

3030121012 has 6 divisors (see below), whose sum is σ = 5302711778. Its totient is φ = 1515060504.

The previous prime is 3030121001. The next prime is 3030121013. The reversal of 3030121012 is 2101210303.

It can be written as a sum of positive squares in only one way, i.e., 2342947216 + 687173796 = 48404^2 + 26214^2 .

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 3030120983 and 3030121001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3030121013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 378765123 + ... + 378765130.

Almost surely, 23030121012 is an apocalyptic number.

It is an amenable number.

3030121012 is a deficient number, since it is larger than the sum of its proper divisors (2272590766).

3030121012 is a wasteful number, since it uses less digits than its factorization.

3030121012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 757530257 (or 757530255 counting only the distinct ones).

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

The square root of 3030121012 is about 55046.5349681522. The cubic root of 3030121012 is about 1447.0603960159.

Adding to 3030121012 its reverse (2101210303), we get a palindrome (5131331315).

The spelling of 3030121012 in words is "three billion, thirty million, one hundred twenty-one thousand, twelve".

Divisors: 1 2 4 757530253 1515060506 3030121012