Search a number
-
+
10728257870 = 2511187152127
BaseRepresentation
bin10011111110111010…
…00011100101001110
31000200200002222010002
421333131003211032
5133432413222440
64532315444302
7526566454511
oct117735034516
930620088102
1010728257870
114605904a20
1220b4a56692
13101c8418a5
1473ab74d78
1542bcb3115
hex27f74394e

10728257870 has 32 divisors (see below), whose sum is σ = 21078061056. Its totient is φ = 3899024800.

The previous prime is 10728257863. The next prime is 10728257887. The reversal of 10728257870 is 7875282701.

It is a congruent number.

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, 179747 + ... + 231873.

It is an arithmetic number, because the mean of its divisors is an integer number (658689408).

Almost surely, 210728257870 is an apocalyptic number.

10728257870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10728257870 is a deficient number, since it is larger than the sum of its proper divisors (10349803186).

10728257870 is a wasteful number, since it uses less digits than its factorization.

10728257870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54016.

The product of its (nonzero) digits is 439040, while the sum is 47.

The spelling of 10728257870 in words is "ten billion, seven hundred twenty-eight million, two hundred fifty-seven thousand, eight hundred seventy".

Divisors: 1 2 5 10 11 22 55 110 1871 3742 9355 18710 20581 41162 52127 102905 104254 205810 260635 521270 573397 1146794 2866985 5733970 97529617 195059234 487648085 975296170 1072825787 2145651574 5364128935 10728257870