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55311093 = 343312063
BaseRepresentation
bin1101001011111…
…1101011110101
310212002002120000
43102333223311
5103124423333
65253301513
71241064555
oct322775365
9125062500
1055311093
1129249052
1216634899
13b5c7976
1474bb165
154cc8713
hex34bfaf5

55311093 has 20 divisors (see below), whose sum is σ = 82915008. Its totient is φ = 36744840.

The previous prime is 55311089. The next prime is 55311101. The reversal of 55311093 is 39011355.

55311093 is a `hidden beast` number, since 553 + 1 + 109 + 3 = 666.

It is not a de Polignac number, because 55311093 - 22 = 55311089 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55311043) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 25780 + ... + 27842.

Almost surely, 255311093 is an apocalyptic number.

It is an amenable number.

55311093 is a deficient number, since it is larger than the sum of its proper divisors (27603915).

55311093 is a wasteful number, since it uses less digits than its factorization.

55311093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2406 (or 2397 counting only the distinct ones).

The product of its (nonzero) digits is 2025, while the sum is 27.

The square root of 55311093 is about 7437.1427981450. The cubic root of 55311093 is about 381.0109117093.

The spelling of 55311093 in words is "fifty-five million, three hundred eleven thousand, ninety-three".

Divisors: 1 3 9 27 81 331 993 2063 2979 6189 8937 18567 26811 55701 167103 682853 2048559 6145677 18437031 55311093