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102072828 = 2231113173499
BaseRepresentation
bin1100001010110…
…00000111111100
321010001211121010
412011120013330
5202112312303
614043435220
72346414264
oct605300774
9233054533
10102072828
1152687910
122a225b10
13181bb130
14d7b07a4
158e63c03
hex61581fc

102072828 has 96 divisors (see below), whose sum is σ = 296352000. Its totient is φ = 26864640.

The previous prime is 102072823. The next prime is 102072833. The reversal of 102072828 is 828270201.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (102072823) and next prime (102072833).

It is a junction number, because it is equal to n+sod(n) for n = 102072795 and 102072804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102072823) 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 31 ways as a sum of consecutive naturals, for example, 27423 + ... + 30921.

It is an arithmetic number, because the mean of its divisors is an integer number (3087000).

Almost surely, 2102072828 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 102072828, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (148176000).

102072828 is an abundant number, since it is smaller than the sum of its proper divisors (194279172).

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

102072828 is a wasteful number, since it uses less digits than its factorization.

102072828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3547 (or 3545 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 30.

The square root of 102072828 is about 10103.1098182688. The cubic root of 102072828 is about 467.3440478038.

The spelling of 102072828 in words is "one hundred two million, seventy-two thousand, eight hundred twenty-eight".

Divisors: 1 2 3 4 6 11 12 13 17 22 26 33 34 39 44 51 52 66 68 78 102 132 143 156 187 204 221 286 374 429 442 561 572 663 748 858 884 1122 1326 1716 2244 2431 2652 3499 4862 6998 7293 9724 10497 13996 14586 20994 29172 38489 41988 45487 59483 76978 90974 115467 118966 136461 153956 178449 181948 230934 237932 272922 356898 461868 500357 545844 654313 713796 773279 1000714 1308626 1501071 1546558 1962939 2001428 2319837 2617252 3002142 3093116 3925878 4639674 6004284 7851756 8506069 9279348 17012138 25518207 34024276 51036414 102072828