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102872 = 23711167
BaseRepresentation
bin11001000111011000
312020010002
4121013120
511242442
62112132
7605630
oct310730
9166102
10102872
1170320
124b648
1337a93
14296c0
1520732
hex191d8

102872 has 32 divisors (see below), whose sum is σ = 241920. Its totient is φ = 39840.

The previous prime is 102871. The next prime is 102877. The reversal of 102872 is 278201.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 102872.

It is not an unprimeable number, because it can be changed into a prime (102871) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 533 + ... + 699.

It is an arithmetic number, because the mean of its divisors is an integer number (7560).

2102872 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 102872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (120960).

102872 is an abundant number, since it is smaller than the sum of its proper divisors (139048).

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

102872 is a wasteful number, since it uses less digits than its factorization.

102872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191 (or 187 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 20.

The square root of 102872 is about 320.7366520995. The cubic root of 102872 is about 46.8560557522.

It can be divided in two parts, 10 and 2872, that added together give a palindrome (2882).

The spelling of 102872 in words is "one hundred two thousand, eight hundred seventy-two".

Divisors: 1 2 4 7 8 11 14 22 28 44 56 77 88 154 167 308 334 616 668 1169 1336 1837 2338 3674 4676 7348 9352 12859 14696 25718 51436 102872