Search a number
-
+
10100818 = 27131923127
BaseRepresentation
bin100110100010…
…000001010010
3201000011201101
4212202001102
510041211233
61000255014
7151566310
oct46420122
921004641
1010100818
115779992
12347146a
132128720
1414ad0b0
15d47c7d
hex9a2052

10100818 has 64 divisors (see below), whose sum is σ = 20643840. Its totient is φ = 3592512.

The previous prime is 10100813. The next prime is 10100869. The reversal of 10100818 is 81800101.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a junction number, because it is equal to n+sod(n) for n = 10100795 and 10100804.

It is not an unprimeable number, because it can be changed into a prime (10100813) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 79471 + ... + 79597.

It is an arithmetic number, because the mean of its divisors is an integer number (322560).

Almost surely, 210100818 is an apocalyptic number.

10100818 is an abundant number, since it is smaller than the sum of its proper divisors (10543022).

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

10100818 is a wasteful number, since it uses less digits than its factorization.

10100818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191.

The product of its (nonzero) digits is 64, while the sum is 19.

The square root of 10100818 is about 3178.1784090891. The cubic root of 10100818 is about 216.1650687229.

Adding to 10100818 its reverse (81800101), we get a palindrome (91900919).

The spelling of 10100818 in words is "ten million, one hundred thousand, eight hundred eighteen".

Divisors: 1 2 7 13 14 19 23 26 38 46 91 127 133 161 182 247 254 266 299 322 437 494 598 874 889 1651 1729 1778 2093 2413 2921 3059 3302 3458 4186 4826 5681 5842 6118 11362 11557 16891 20447 23114 31369 33782 37973 39767 40894 55499 62738 75946 79534 110998 219583 265811 388493 439166 531622 721487 776986 1442974 5050409 10100818