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34728925 = 5271118041
BaseRepresentation
bin1000010001111…
…0101111011101
32102100102010111
42010132233131
532342311200
63240210021
7601122340
oct204365735
972312114
1034728925
11186703a0
12b769911
13726c57a
144880457
1530b00ba
hex211ebdd

34728925 has 24 divisors (see below), whose sum is σ = 53692992. Its totient is φ = 21648000.

The previous prime is 34728923. The next prime is 34728929. The reversal of 34728925 is 52982743.

It is not a de Polignac number, because 34728925 - 21 = 34728923 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34728923) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7096 + ... + 10945.

It is an arithmetic number, because the mean of its divisors is an integer number (2237208).

Almost surely, 234728925 is an apocalyptic number.

34728925 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

34728925 is a deficient number, since it is larger than the sum of its proper divisors (18964067).

34728925 is a wasteful number, since it uses less digits than its factorization.

34728925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18069 (or 18064 counting only the distinct ones).

The product of its digits is 120960, while the sum is 40.

The square root of 34728925 is about 5893.1252319970. The cubic root of 34728925 is about 326.2599611370.

It can be divided in two parts, 34728 and 925, that added together give a palindrome (35653).

The spelling of 34728925 in words is "thirty-four million, seven hundred twenty-eight thousand, nine hundred twenty-five".

Divisors: 1 5 7 11 25 35 55 77 175 275 385 1925 18041 90205 126287 198451 451025 631435 992255 1389157 3157175 4961275 6945785 34728925