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102444 = 2238537
BaseRepresentation
bin11001000000101100
312012112020
4121000230
511234234
62110140
7604446
oct310054
9165466
10102444
116aa71
124b350
1337824
1429496
1520549
hex1902c

102444 has 12 divisors (see below), whose sum is σ = 239064. Its totient is φ = 34144.

The previous prime is 102437. The next prime is 102451. The reversal of 102444 is 444201.

It is an interprime number because it is at equal distance from previous prime (102437) and next prime (102451).

It is a tau number, because it is divible by the number of its divisors (12).

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 102444.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4257 + ... + 4280.

It is an arithmetic number, because the mean of its divisors is an integer number (19922).

2102444 is an apocalyptic number.

It is an amenable number.

102444 is an abundant number, since it is smaller than the sum of its proper divisors (136620).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102444 is a wasteful number, since it uses less digits than its factorization.

102444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8544 (or 8542 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 102444 is about 320.0687426163. The cubic root of 102444 is about 46.7909837259.

Adding to 102444 its reverse (444201), we get a palindrome (546645).

The spelling of 102444 in words is "one hundred two thousand, four hundred forty-four", and thus it is an iban number.

Divisors: 1 2 3 4 6 12 8537 17074 25611 34148 51222 102444