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1107928189 = 31265913441
BaseRepresentation
bin100001000001001…
…1010010001111101
32212012202120202101
41002002122101331
54232112200224
6301534425101
736312143224
oct10202322175
92765676671
101107928189
1151943a935
1226b062191
131486c8514
14a7203cbb
1567400044
hex4209a47d

1107928189 has 8 divisors (see below), whose sum is σ = 1144183040. Its totient is φ = 1071705600.

The previous prime is 1107928181. The next prime is 1107928201. The reversal of 1107928189 is 9818297011.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1107928189 - 23 = 1107928181 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1107928181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75709 + ... + 89149.

It is an arithmetic number, because the mean of its divisors is an integer number (143022880).

Almost surely, 21107928189 is an apocalyptic number.

It is an amenable number.

1107928189 is a deficient number, since it is larger than the sum of its proper divisors (36254851).

1107928189 is a wasteful number, since it uses less digits than its factorization.

1107928189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16131.

The product of its (nonzero) digits is 72576, while the sum is 46.

The square root of 1107928189 is about 33285.5552605030. Note that the first 3 decimals coincide. The cubic root of 1107928189 is about 1034.7542148602.

It can be divided in two parts, 1107 and 928189, that added together give a square (929296 = 9642).

The spelling of 1107928189 in words is "one billion, one hundred seven million, nine hundred twenty-eight thousand, one hundred eighty-nine".

Divisors: 1 31 2659 13441 82429 416671 35739619 1107928189