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102442444 = 221313914173
BaseRepresentation
bin1100001101100…
…10010111001100
321010202121121121
412012302113030
5202211124234
614055410324
72352514006
oct606622714
9233677547
10102442444
115290a585
122a3839a4
13182ba440
14d869376
158ed84b4
hex61b25cc

102442444 has 24 divisors (see below), whose sum is σ = 194467280. Its totient is φ = 46937664.

The previous prime is 102442429. The next prime is 102442447. The reversal of 102442444 is 444244201.

It is not an unprimeable number, because it can be changed into a prime (102442447) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 142 + ... + 14314.

Almost surely, 2102442444 is an apocalyptic number.

It is an amenable number.

102442444 is a deficient number, since it is larger than the sum of its proper divisors (92024836).

102442444 is a wasteful number, since it uses less digits than its factorization.

102442444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14329 (or 14327 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 25.

The square root of 102442444 is about 10121.3854782831. The cubic root of 102442444 is about 467.9074682524.

Adding to 102442444 its reverse (444244201), we get a palindrome (546686645).

The spelling of 102442444 in words is "one hundred two million, four hundred forty-two thousand, four hundred forty-four".

Divisors: 1 2 4 13 26 52 139 278 556 1807 3614 7228 14173 28346 56692 184249 368498 736996 1970047 3940094 7880188 25610611 51221222 102442444