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3012645420 = 2233522132521
BaseRepresentation
bin1011001110010001…
…0101001000101100
321202221211020121000
42303210111020230
522132214123140
61214535240300
7134441030541
oct26344251054
97687736530
103012645420
111306618104
12700b19090
133901c1235
14208178bc8
15129740a30
hexb391522c

3012645420 has 96 divisors (see below), whose sum is σ = 9380629440. Its totient is φ = 802690560.

The previous prime is 3012645407. The next prime is 3012645421. The reversal of 3012645420 is 245462103.

3012645420 is a `hidden beast` number, since 3 + 0 + 12 + 645 + 4 + 2 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (3012645421) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1193760 + ... + 1196280.

It is an arithmetic number, because the mean of its divisors is an integer number (97714890).

Almost surely, 23012645420 is an apocalyptic number.

3012645420 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3012645420 is an abundant number, since it is smaller than the sum of its proper divisors (6367984020).

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

3012645420 is a wasteful number, since it uses less digits than its factorization.

3012645420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4752 (or 4744 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 3012645420 is about 54887.5707241630. The cubic root of 3012645420 is about 1444.2731576816.

The spelling of 3012645420 in words is "three billion, twelve million, six hundred forty-five thousand, four hundred twenty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 27 30 36 45 54 60 90 108 135 180 270 540 2213 2521 4426 5042 6639 7563 8852 10084 11065 12605 13278 15126 19917 22130 22689 25210 26556 30252 33195 37815 39834 44260 45378 50420 59751 66390 68067 75630 79668 90756 99585 113445 119502 132780 136134 151260 199170 226890 239004 272268 298755 340335 398340 453780 597510 680670 1195020 1361340 5578973 11157946 16736919 22315892 27894865 33473838 50210757 55789730 66947676 83684595 100421514 111579460 150632271 167369190 200843028 251053785 301264542 334738380 502107570 602529084 753161355 1004215140 1506322710 3012645420