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7872282 = 2331129457
BaseRepresentation
bin11110000001111100011010
3112210221202000
4132001330122
54003403112
6440421430
7123625155
oct36017432
915727660
107872282
114497620
122777876
131828272
14108cc9c
15a577dc
hex781f1a

7872282 has 64 divisors (see below), whose sum is σ = 19785600. Its totient is φ = 2298240.

The previous prime is 7872269. The next prime is 7872283. The reversal of 7872282 is 2822787.

7872282 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a d-powerful number, because it can be written as 72 + 8 + 78 + 25 + 211 + 87 + 213 .

It is not an unprimeable number, because it can be changed into a prime (7872283) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16998 + ... + 17454.

It is an arithmetic number, because the mean of its divisors is an integer number (309150).

Almost surely, 27872282 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7872282, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9892800).

7872282 is an abundant number, since it is smaller than the sum of its proper divisors (11913318).

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

7872282 is a wasteful number, since it uses less digits than its factorization.

7872282 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 508 (or 502 counting only the distinct ones).

The product of its digits is 25088, while the sum is 36.

The square root of 7872282 is about 2805.7587209167. The cubic root of 7872282 is about 198.9299687081.

The spelling of 7872282 in words is "seven million, eight hundred seventy-two thousand, two hundred eighty-two".

Divisors: 1 2 3 6 9 11 18 22 27 29 33 54 58 66 87 99 174 198 261 297 319 457 522 594 638 783 914 957 1371 1566 1914 2742 2871 4113 5027 5742 8226 8613 10054 12339 13253 15081 17226 24678 26506 30162 39759 45243 79518 90486 119277 135729 145783 238554 271458 291566 357831 437349 715662 874698 1312047 2624094 3936141 7872282