Search a number
-
+
10720930 = 251197463
BaseRepresentation
bin101000111001…
…011010100010
3202011200100111
4220321122202
510221032210
61021441534
7160061233
oct50713242
922150314
1010720930
116062880
1237102aa
1322b4a5c
1415d108a
15e1b88a
hexa396a2

10720930 has 16 divisors (see below), whose sum is σ = 21052224. Its totient is φ = 3898480.

The previous prime is 10720907. The next prime is 10720939. The reversal of 10720930 is 3902701.

It is a super-2 number, since 2×107209302 = 229876680129800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (10720939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48622 + ... + 48841.

It is an arithmetic number, because the mean of its divisors is an integer number (1315764).

Almost surely, 210720930 is an apocalyptic number.

10720930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10720930 is a deficient number, since it is larger than the sum of its proper divisors (10331294).

10720930 is a wasteful number, since it uses less digits than its factorization.

10720930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97481.

The product of its (nonzero) digits is 378, while the sum is 22.

The square root of 10720930 is about 3274.2831276479. The cubic root of 10720930 is about 220.5011303531.

The spelling of 10720930 in words is "ten million, seven hundred twenty thousand, nine hundred thirty".

Divisors: 1 2 5 10 11 22 55 110 97463 194926 487315 974630 1072093 2144186 5360465 10720930