Search a number
-
+
104060781 = 3411116791
BaseRepresentation
bin1100011001111…
…01011101101101
321020210211120000
412030331131231
5203114421111
614154214513
72402334126
oct614753555
9236724500
10104060781
1153815450
122aa24439
1318735c36
14db6b04d
159207c56
hex633d76d

104060781 has 20 divisors (see below), whose sum is σ = 169581984. Its totient is φ = 63066600.

The previous prime is 104060779. The next prime is 104060833. The reversal of 104060781 is 187060401.

It is a happy number.

104060781 is a `hidden beast` number, since 10 + 40 + 607 + 8 + 1 = 666.

It is not a de Polignac number, because 104060781 - 21 = 104060779 is a prime.

It is a super-2 number, since 2×1040607812 = 21657292284659922, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104060771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 57505 + ... + 59286.

Almost surely, 2104060781 is an apocalyptic number.

104060781 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

104060781 is a deficient number, since it is larger than the sum of its proper divisors (65521203).

104060781 is a wasteful number, since it uses less digits than its factorization.

104060781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116814 (or 116805 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 27.

The square root of 104060781 is about 10201.0186256079. The cubic root of 104060781 is about 470.3585328268.

The spelling of 104060781 in words is "one hundred four million, sixty thousand, seven hundred eighty-one".

Divisors: 1 3 9 11 27 33 81 99 297 891 116791 350373 1051119 1284701 3153357 3854103 9460071 11562309 34686927 104060781