Search a number
-
+
10081028840 = 2357922913931
BaseRepresentation
bin10010110001110000…
…00100101011101000
3222000120020022210112
421120320010223220
5131121220410330
64344155233452
7504550221431
oct113070045350
928016208715
1010081028840
1143035291a3
121b54148888
13c4871ac2c
146b8c16488
153e0066795
hex258e04ae8

10081028840 has 64 divisors (see below), whose sum is σ = 23071392000. Its totient is φ = 3963697920.

The previous prime is 10081028821. The next prime is 10081028887. The reversal of 10081028840 is 4882018001.

It is a junction number, because it is equal to n+sod(n) for n = 10081028797 and 10081028806.

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, 716675 + ... + 730605.

It is an arithmetic number, because the mean of its divisors is an integer number (360490500).

Almost surely, 210081028840 is an apocalyptic number.

10081028840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10081028840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11535696000).

10081028840 is an abundant number, since it is smaller than the sum of its proper divisors (12990363160).

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

10081028840 is a wasteful number, since it uses less digits than its factorization.

10081028840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14250 (or 14246 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 32.

The spelling of 10081028840 in words is "ten billion, eighty-one million, twenty-eight thousand, eight hundred forty".

Divisors: 1 2 4 5 8 10 20 40 79 158 229 316 395 458 632 790 916 1145 1580 1832 2290 3160 4580 9160 13931 18091 27862 36182 55724 69655 72364 90455 111448 139310 144728 180910 278620 361820 557240 723640 1100549 2201098 3190199 4402196 5502745 6380398 8804392 11005490 12760796 15950995 22010980 25521592 31901990 44021960 63803980 127607960 252025721 504051442 1008102884 1260128605 2016205768 2520257210 5040514420 10081028840