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106091564089 = 72192312792
BaseRepresentation
bin110001011001110001…
…1001100110000111001
3101010211200222212020111
41202303203030300321
53214233420022324
6120423210224321
710444022262400
oct1426343146071
9333750885214
10106091564089
1140aa1a16395
1218689a250a1
13a009857334
1451c60a6637
152b5de0c794
hex18b38ccc39

106091564089 has 81 divisors (see below), whose sum is σ = 136312244901. Its totient is φ = 82315200240.

The previous prime is 106091564083. The next prime is 106091564093. The reversal of 106091564089 is 980465190601.

The square root of 106091564089 is 325717.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 106091564089 - 219 = 106091039801 is a prime.

It is a super-2 number, since 2×1060915640892 (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is not an unprimeable number, because it can be changed into a prime (106091564083) by changing a digit.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 1342931152 + ... + 1342931230.

It is an arithmetic number, because the mean of its divisors is an integer number (1682867221).

Almost surely, 2106091564089 is an apocalyptic number.

106091564089 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

106091564089 is the 325717-th square number.

106091564089 is the 162859-th centered octagonal number.

It is an amenable number.

106091564089 is a deficient number, since it is larger than the sum of its proper divisors (30220680812).

106091564089 is an frugal number, since it uses more digits than its factorization.

106091564089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272 (or 136 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 49.

Multiplying 106091564089 by its sum of digits (49), we get a square (5198486640361 = 22800192).

106091564089 divided by its sum of digits (49) gives a square (2165133961 = 465312).

The spelling of 106091564089 in words is "one hundred six billion, ninety-one million, five hundred sixty-four thousand, eighty-nine".

Divisors: 1 7 19 31 49 79 133 217 361 553 589 931 961 1501 1519 2449 2527 3871 4123 6241 6727 10507 11191 17143 17689 18259 28519 28861 43687 46531 47089 73549 75919 78337 118579 120001 127813 193471 199633 305809 325717 346921 531433 548359 830053 884089 894691 1354297 1397431 1442461 2253001 2280019 2428447 3675949 3720031 5810371 5997601 6188623 9480079 10097227 15771007 16999129 25731643 27406759 41983207 43320361 69843031 70680589 110397049 113954419 180121501 191847313 293882449 488901217 797680933 1342931191 2165133961 3422308519 5583766531 15155937727 106091564089