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3012003121 = 31346328057
BaseRepresentation
bin1011001110000111…
…1000010100110001
321202220121121112011
42303201320110301
522132033044441
61214513402521
7134432414131
oct26341702461
97686547464
103012003121
111306219586
12700869441
13390027a8a
1420804cac1
15129665581
hexb3878531

3012003121 has 8 divisors (see below), whose sum is σ = 3110173184. Its totient is φ = 2913896160.

The previous prime is 3012003119. The next prime is 3012003143. The reversal of 3012003121 is 1213002103.

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 3012003121 - 21 = 3012003119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3012003151) 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, 93325 + ... + 121381.

It is an arithmetic number, because the mean of its divisors is an integer number (388771648).

Almost surely, 23012003121 is an apocalyptic number.

3012003121 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

3012003121 is a deficient number, since it is larger than the sum of its proper divisors (98170063).

3012003121 is a wasteful number, since it uses less digits than its factorization.

3012003121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31551.

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

The square root of 3012003121 is about 54881.7193699323. The cubic root of 3012003121 is about 1444.1705102285.

Adding to 3012003121 its reverse (1213002103), we get a palindrome (4225005224).

The spelling of 3012003121 in words is "three billion, twelve million, three thousand, one hundred twenty-one".

Divisors: 1 31 3463 28057 107353 869767 97161391 3012003121