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302130012 = 223374571489
BaseRepresentation
bin10010000000100…
…010001101011100
3210001111210110110
4102000202031130
51104321130022
645551410020
710326030342
oct2200421534
9701453413
10302130012
111455a9828
1285223910
134a795472
142c1a9992
151b7d000c
hex1202235c

302130012 has 48 divisors (see below), whose sum is σ = 726094880. Its totient is φ = 97708032.

The previous prime is 302129977. The next prime is 302130013. The reversal of 302130012 is 210031203.

It is a happy number.

It is a super-2 number, since 2×3021300122 = 182565088302240288, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a self number, because there is not a number n which added to its sum of digits gives 302130012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (302130013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 202164 + ... + 203652.

Almost surely, 2302130012 is an apocalyptic number.

It is an amenable number.

302130012 is an abundant number, since it is smaller than the sum of its proper divisors (423964868).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

302130012 is a wasteful number, since it uses less digits than its factorization.

302130012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1990 (or 1988 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 302130012 is about 17381.8874694321. The cubic root of 302130012 is about 671.0135487665.

Adding to 302130012 its reverse (210031203), we get a palindrome (512161215).

It can be divided in two parts, 3021 and 30012, that added together give a palindrome (33033).

The spelling of 302130012 in words is "three hundred two million, one hundred thirty thousand, twelve".

Divisors: 1 2 3 4 6 12 37 74 111 148 222 444 457 914 1371 1489 1828 2742 2978 4467 5484 5956 8934 16909 17868 33818 50727 55093 67636 101454 110186 165279 202908 220372 330558 661116 680473 1360946 2041419 2721892 4082838 8165676 25177501 50355002 75532503 100710004 151065006 302130012