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3123003140 = 2254315124049
BaseRepresentation
bin1011101000100101…
…0011111100000100
322001122110222220222
42322021103330010
522343442100030
61233520443512
7140251042265
oct27211237404
98048428828
103123003140
111362943534
12731a79598
133aa02036a
14218aa496c
1513428e3e5
hexba253f04

3123003140 has 48 divisors (see below), whose sum is σ = 6755548800. Its totient is φ = 1212019200.

The previous prime is 3123003137. The next prime is 3123003203. The reversal of 3123003140 is 413003213.

It is a happy number.

It is a super-2 number, since 2×31230031402 = 19506297224899719200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 117836 + ... + 141884.

It is an arithmetic number, because the mean of its divisors is an integer number (140740600).

Almost surely, 23123003140 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3123003140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3377774400).

3123003140 is an abundant number, since it is smaller than the sum of its proper divisors (3632545660).

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

3123003140 is a wasteful number, since it uses less digits than its factorization.

3123003140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24252 (or 24250 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 3123003140 is about 55883.8361245897. The cubic root of 3123003140 is about 1461.6973972041.

Adding to 3123003140 its reverse (413003213), we get a palindrome (3536006353).

The spelling of 3123003140 in words is "three billion, one hundred twenty-three million, three thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 43 86 151 172 215 302 430 604 755 860 1510 3020 6493 12986 24049 25972 32465 48098 64930 96196 120245 129860 240490 480980 1034107 2068214 3631399 4136428 5170535 7262798 10341070 14525596 18156995 20682140 36313990 72627980 156150157 312300314 624600628 780750785 1561501570 3123003140