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102205054 = 27172318671
BaseRepresentation
bin1100001011110…
…00011001111110
321010022112222101
412011320121332
5202131030204
614050335314
72350504630
oct605703176
9233275871
10102205054
1152768196
122a28a53a
1318236383
14d806a50
158e8cea4
hex617867e

102205054 has 32 divisors (see below), whose sum is σ = 193591296. Its totient is φ = 39431040.

The previous prime is 102205043. The next prime is 102205079. The reversal of 102205054 is 450502201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3862 + ... + 14809.

It is an arithmetic number, because the mean of its divisors is an integer number (6049728).

Almost surely, 2102205054 is an apocalyptic number.

102205054 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

102205054 is a deficient number, since it is larger than the sum of its proper divisors (91386242).

102205054 is a wasteful number, since it uses less digits than its factorization.

102205054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18720.

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 102205054 is about 10109.6515271299. The cubic root of 102205054 is about 467.5457611987.

Adding to 102205054 its reverse (450502201), we get a palindrome (552707255).

The spelling of 102205054 in words is "one hundred two million, two hundred five thousand, fifty-four".

Divisors: 1 2 7 14 17 23 34 46 119 161 238 322 391 782 2737 5474 18671 37342 130697 261394 317407 429433 634814 858866 2221849 3006031 4443698 6012062 7300361 14600722 51102527 102205054