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102761438 = 21319120693
BaseRepresentation
bin1100010000000…
…00001111011110
321011100211012012
412020000033132
5202301331223
614110311222
72355313013
oct610001736
9234324165
10102761438
115300820a
122a4b8512
131839c6b0
14d90d70a
15904cc78
hex62003de

102761438 has 16 divisors (see below), whose sum is σ = 166876416. Its totient is φ = 47177760.

The previous prime is 102761437. The next prime is 102761453. The reversal of 102761438 is 834167201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102761437) by changing a digit.

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, 5381 + ... + 15312.

It is an arithmetic number, because the mean of its divisors is an integer number (10429776).

Almost surely, 2102761438 is an apocalyptic number.

102761438 is a deficient number, since it is larger than the sum of its proper divisors (64114978).

102761438 is a wasteful number, since it uses less digits than its factorization.

102761438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20899.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 102761438 is about 10137.1316455889. The cubic root of 102761438 is about 468.3926350470.

The spelling of 102761438 in words is "one hundred two million, seven hundred sixty-one thousand, four hundred thirty-eight".

Divisors: 1 2 13 26 191 382 2483 4966 20693 41386 269009 538018 3952363 7904726 51380719 102761438