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16049720 = 235401243
BaseRepresentation
bin111101001110…
…011000111000
31010012102002002
4331032120320
513102042340
61332000132
7253264121
oct75163070
933172062
1016049720
119072435
125460048
13342c39b
1421bb048
151620715
hexf4e638

16049720 has 16 divisors (see below), whose sum is σ = 36111960. Its totient is φ = 6419872.

The previous prime is 16049713. The next prime is 16049767. The reversal of 16049720 is 2794061.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 200582 + ... + 200661.

Almost surely, 216049720 is an apocalyptic number.

16049720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16049720 is an abundant number, since it is smaller than the sum of its proper divisors (20062240).

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

16049720 is a wasteful number, since it uses less digits than its factorization.

16049720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 401254 (or 401250 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 16049720 is about 4006.2101792093. The cubic root of 16049720 is about 252.2449537223.

The spelling of 16049720 in words is "sixteen million, forty-nine thousand, seven hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 401243 802486 1604972 2006215 3209944 4012430 8024860 16049720