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55109192 = 2347971511
BaseRepresentation
bin1101001000111…
…0011001001000
310211200211121012
43102032121020
5103101443232
65245103052
71236264125
oct322163110
9124624535
1055109192
1129120396
1216557a88
13b556ab8
14746774c
154c889b2
hex348e648

55109192 has 32 divisors (see below), whose sum is σ = 106686720. Its totient is φ = 26672640.

The previous prime is 55109167. The next prime is 55109231. The reversal of 55109192 is 29190155.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 35717 + ... + 37227.

It is an arithmetic number, because the mean of its divisors is an integer number (3333960).

Almost surely, 255109192 is an apocalyptic number.

It is an amenable number.

55109192 is a deficient number, since it is larger than the sum of its proper divisors (51577528).

55109192 is a wasteful number, since it uses less digits than its factorization.

55109192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1661 (or 1657 counting only the distinct ones).

The product of its (nonzero) digits is 4050, while the sum is 32.

The square root of 55109192 is about 7423.5565600324. The cubic root of 55109192 is about 380.5467475832.

The spelling of 55109192 in words is "fifty-five million, one hundred nine thousand, one hundred ninety-two".

Divisors: 1 2 4 8 47 94 97 188 194 376 388 776 1511 3022 4559 6044 9118 12088 18236 36472 71017 142034 146567 284068 293134 568136 586268 1172536 6888649 13777298 27554596 55109192