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28029114 = 2321739001
BaseRepresentation
bin110101011101…
…1000010111010
31221202000201100
41222323002322
524133412424
62440432230
7460146351
oct152730272
957660640
1028029114
1114904763
129478676
135a64b99
143a18998
1526d9dc9
hex1abb0ba

28029114 has 24 divisors (see below), whose sum is σ = 61087572. Its totient is φ = 9288000.

The previous prime is 28029097. The next prime is 28029143. The reversal of 28029114 is 41192082.

It can be written as a sum of positive squares in 2 ways, for example, as 27910089 + 119025 = 5283^2 + 345^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1387 + ... + 7614.

Almost surely, 228029114 is an apocalyptic number.

28029114 is an abundant number, since it is smaller than the sum of its proper divisors (33058458).

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

28029114 is a wasteful number, since it uses less digits than its factorization.

28029114 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9182 (or 9179 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 28029114 is about 5294.2529218011. The cubic root of 28029114 is about 303.7641074584.

The spelling of 28029114 in words is "twenty-eight million, twenty-nine thousand, one hundred fourteen".

Divisors: 1 2 3 6 9 18 173 346 519 1038 1557 3114 9001 18002 27003 54006 81009 162018 1557173 3114346 4671519 9343038 14014557 28029114