Search a number
-
+
10281120 = 253521419
BaseRepresentation
bin100111001110…
…000010100000
3201100100001020
4213032002200
510112443440
61004205440
7153250053
oct47160240
921310036
1010281120
1158923a3
123539880
13218c805
141518a9a
15d813d0
hex9ce0a0

10281120 has 48 divisors (see below), whose sum is σ = 32387040. Its totient is φ = 2741504.

The previous prime is 10281113. The next prime is 10281121. The reversal of 10281120 is 2118201.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-3 number, since 3×102811203 (a number of 22 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 10281120.

It is not an unprimeable number, because it can be changed into a prime (10281121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10230 + ... + 11189.

It is an arithmetic number, because the mean of its divisors is an integer number (674730).

Almost surely, 210281120 is an apocalyptic number.

10281120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10281120 is an abundant number, since it is smaller than the sum of its proper divisors (22105920).

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

10281120 is a wasteful number, since it uses less digits than its factorization.

10281120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21437 (or 21429 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

The square root of 10281120 is about 3206.4185628205. The cubic root of 10281120 is about 217.4436900073.

Adding to 10281120 its reverse (2118201), we get a palindrome (12399321).

It can be divided in two parts, 102811 and 20, that added together give a triangular number (102831 = T453).

The spelling of 10281120 in words is "ten million, two hundred eighty-one thousand, one hundred twenty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 48 60 80 96 120 160 240 480 21419 42838 64257 85676 107095 128514 171352 214190 257028 321285 342704 428380 514056 642570 685408 856760 1028112 1285140 1713520 2056224 2570280 3427040 5140560 10281120