Search a number
-
+
105431877 = 3229713943
BaseRepresentation
bin1100100100011…
…00001101000101
321100101111100100
412102030031011
5203442310002
614243434313
72420104365
oct622141505
9240344310
10105431877
1154571591
122b385999
1318ac6035
14100069a5
1593c911c
hex648c345

105431877 has 12 divisors (see below), whose sum is σ = 152380384. Its totient is φ = 70246440.

The previous prime is 105431863. The next prime is 105431881. The reversal of 105431877 is 778134501.

It is not a de Polignac number, because 105431877 - 24 = 105431861 is a prime.

It is a super-2 number, since 2×1054318772 = 22231761375486258, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105431827) 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 11 ways as a sum of consecutive naturals, for example, 24768 + ... + 28710.

Almost surely, 2105431877 is an apocalyptic number.

It is an amenable number.

105431877 is a deficient number, since it is larger than the sum of its proper divisors (46948507).

105431877 is a wasteful number, since it uses less digits than its factorization.

105431877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6920 (or 6917 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 36.

The square root of 105431877 is about 10268.0025808333. The cubic root of 105431877 is about 472.4153270630.

The spelling of 105431877 in words is "one hundred five million, four hundred thirty-one thousand, eight hundred seventy-seven".

Divisors: 1 3 9 2971 3943 8913 11829 26739 35487 11714653 35143959 105431877