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102049055 = 5315911159
BaseRepresentation
bin1100001010100…
…10010100011111
321010000121222122
412011102110133
5202111032210
614043133155
72346255053
oct605222437
9233017878
10102049055
1152670a69
122a2141bb
13181b0374
14d7a5c63
158e5bb55
hex615251f

102049055 has 16 divisors (see below), whose sum is σ = 128563200. Its totient is φ = 77659680.

The previous prime is 102049043. The next prime is 102049061. The reversal of 102049055 is 550940201.

It is not a de Polignac number, because 102049055 - 24 = 102049039 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3566 + ... + 14724.

It is an arithmetic number, because the mean of its divisors is an integer number (8035200).

Almost surely, 2102049055 is an apocalyptic number.

102049055 is a deficient number, since it is larger than the sum of its proper divisors (26514145).

102049055 is a wasteful number, since it uses less digits than its factorization.

102049055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11254.

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 102049055 is about 10101.9332308227. The cubic root of 102049055 is about 467.3077631467.

Adding to 102049055 its reverse (550940201), we get a palindrome (652989256).

The spelling of 102049055 in words is "one hundred two million, forty-nine thousand, fifty-five".

Divisors: 1 5 31 59 155 295 1829 9145 11159 55795 345929 658381 1729645 3291905 20409811 102049055