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109191917675 = 5231257548221
BaseRepresentation
bin110010110110001011…
…0000111000001101011
3101102211202212010211002
41211230112013001223
53242111112331200
6122055001425215
710613606662211
oct1455426070153
9342752763732
10109191917675
1142342a99985
12191b419b20b
13a3b1c77299
1453dbb52cb1
152c911c5bd5
hex196c58706b

109191917675 has 24 divisors (see below), whose sum is σ = 140309745792. Its totient is φ = 84206592000.

The previous prime is 109191917651. The next prime is 109191917687. The reversal of 109191917675 is 576719191901.

It is not a de Polignac number, because 109191917675 - 226 = 109124808811 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 109191917675.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 74936 + ... + 473285.

It is an arithmetic number, because the mean of its divisors is an integer number (5846239408).

Almost surely, 2109191917675 is an apocalyptic number.

109191917675 is a deficient number, since it is larger than the sum of its proper divisors (31117828117).

109191917675 is a wasteful number, since it uses less digits than its factorization.

109191917675 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 548519 (or 548514 counting only the distinct ones).

The product of its (nonzero) digits is 1071630, while the sum is 56.

The spelling of 109191917675 in words is "one hundred nine billion, one hundred ninety-one million, nine hundred seventeen thousand, six hundred seventy-five".

Divisors: 1 5 25 31 155 257 775 1285 6425 7967 39835 199175 548221 2741105 13705525 16994851 84974255 140892797 424871275 704463985 3522319925 4367676707 21838383535 109191917675