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7128348700 = 2252116739629
BaseRepresentation
bin1101010001110000…
…11111100000011100
3200101210020122002211
412220320133200130
5104044324124300
63135201130204
7341434651504
oct65070374034
920353218084
107128348700
113028848980
12146b329964
13897a93c15
144b8a0aa04
152bac1d4ba
hex1a8e1f81c

7128348700 has 72 divisors (see below), whose sum is σ = 16901574480. Its totient is φ = 2588006400.

The previous prime is 7128348697. The next prime is 7128348751. The reversal of 7128348700 is 78438217.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 735486 + ... + 745114.

It is an arithmetic number, because the mean of its divisors is an integer number (234744090).

Almost surely, 27128348700 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 7128348700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8450787240).

7128348700 is an abundant number, since it is smaller than the sum of its proper divisors (9773225780).

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

7128348700 is a wasteful number, since it uses less digits than its factorization.

7128348700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10327 (or 10320 counting only the distinct ones).

The product of its (nonzero) digits is 75264, while the sum is 40.

The square root of 7128348700 is about 84429.5487373941. The cubic root of 7128348700 is about 1924.5519798433.

The spelling of 7128348700 in words is "seven billion, one hundred twenty-eight million, three hundred forty-eight thousand, seven hundred".

Divisors: 1 2 4 5 10 11 20 22 25 44 50 55 100 110 220 275 550 673 1100 1346 2692 3365 6730 7403 9629 13460 14806 16825 19258 29612 33650 37015 38516 48145 67300 74030 96290 105919 148060 185075 192580 211838 240725 370150 423676 481450 529595 740300 962900 1059190 2118380 2647975 5295950 6480317 10591900 12960634 25921268 32401585 64803170 71283487 129606340 142566974 162007925 285133948 324015850 356417435 648031700 712834870 1425669740 1782087175 3564174350 7128348700