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55251274 = 2138325603
BaseRepresentation
bin1101001011000…
…1000101001010
310211222001111111
43102301011022
5103121020044
65252120534
71240425301
oct322610512
9124861444
1055251274
1129208111
121660614a
13b5a6680
1474a3438
154cb5b34
hex34b114a

55251274 has 16 divisors (see below), whose sum is σ = 90330912. Its totient is φ = 25192368.

The previous prime is 55251263. The next prime is 55251307. The reversal of 55251274 is 47215255.

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, 10644 + ... + 14959.

It is an arithmetic number, because the mean of its divisors is an integer number (5645682).

Almost surely, 255251274 is an apocalyptic number.

55251274 is a deficient number, since it is larger than the sum of its proper divisors (35079638).

55251274 is a wasteful number, since it uses less digits than its factorization.

55251274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25701.

The product of its digits is 14000, while the sum is 31.

The square root of 55251274 is about 7433.1200716792. The cubic root of 55251274 is about 380.8735076080.

The spelling of 55251274 in words is "fifty-five million, two hundred fifty-one thousand, two hundred seventy-four".

Divisors: 1 2 13 26 83 166 1079 2158 25603 51206 332839 665678 2125049 4250098 27625637 55251274