Search a number
-
+
21100021210102 = 2151269321780737
BaseRepresentation
bin1001100110000101110110…
…10001001101101111110110
32202201010211202102212011211
410303002323101031233312
510231200320412210402
6112513114350152034
74305266124025312
oct463027321155766
982633752385154
1021100021210102
1167a551799553a
1224493aa4b261a
13ba09535a7163
1452d364486b42
15268cd76264d7
hex1330bb44dbf6

21100021210102 has 32 divisors (see below), whose sum is σ = 31988408518080. Its totient is φ = 10437808435200.

The previous prime is 21100021210087. The next prime is 21100021210237. The reversal of 21100021210102 is 20101212000112.

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, 261302278 + ... + 261383014.

It is an arithmetic number, because the mean of its divisors is an integer number (999637766190).

Almost surely, 221100021210102 is an apocalyptic number.

21100021210102 is a deficient number, since it is larger than the sum of its proper divisors (10888387307978).

21100021210102 is a wasteful number, since it uses less digits than its factorization.

21100021210102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84376.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 21100021210102 its reverse (20101212000112), we get a palindrome (41201233210214).

The spelling of 21100021210102 in words is "twenty-one trillion, one hundred billion, twenty-one million, two hundred ten thousand, one hundred two".

Divisors: 1 2 151 269 302 538 3217 6434 40619 80737 81238 161474 485767 865373 971534 1730746 12191287 21718253 24382574 43436506 130671323 259730929 261342646 519461858 3279456203 6558912406 39219370279 69867619901 78438740558 139735239802 10550010605051 21100021210102