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55093983 = 372374789
BaseRepresentation
bin1101001000101…
…0101011011111
310211200001201220
43102022223133
5103101001413
65244504423
71236201600
oct322125337
9124601656
1055093983
112910aa1a
121654b113
13b54cbb9
147461da7
154c84223
hex348aadf

55093983 has 12 divisors (see below), whose sum is σ = 85452120. Its totient is φ = 31482192.

The previous prime is 55093981. The next prime is 55094003. The reversal of 55093983 is 38939055.

It is not a de Polignac number, because 55093983 - 21 = 55093981 is a prime.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55093981) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 187248 + ... + 187541.

It is an arithmetic number, because the mean of its divisors is an integer number (7121010).

Almost surely, 255093983 is an apocalyptic number.

55093983 is a deficient number, since it is larger than the sum of its proper divisors (30358137).

55093983 is a wasteful number, since it uses less digits than its factorization.

55093983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 374806 (or 374799 counting only the distinct ones).

The product of its (nonzero) digits is 145800, while the sum is 42.

The square root of 55093983 is about 7422.5321151208. The cubic root of 55093983 is about 380.5117366785.

The spelling of 55093983 in words is "fifty-five million, ninety-three thousand, nine hundred eighty-three".

Divisors: 1 3 7 21 49 147 374789 1124367 2623523 7870569 18364661 55093983