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16389701 = 157104393
BaseRepresentation
bin111110100001…
…011001000101
31010211200102222
4332201121011
513143432301
61343142125
7256211246
oct76413105
933750388
1016389701
119284909
1255a4945
13351b063
142268ccd
15168b31b
hexfa1645

16389701 has 4 divisors (see below), whose sum is σ = 16494252. Its totient is φ = 16285152.

The previous prime is 16389689. The next prime is 16389707. The reversal of 16389701 is 10798361.

16389701 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 12285025 + 4104676 = 3505^2 + 2026^2 .

It is a cyclic number.

It is not a de Polignac number, because 16389701 - 214 = 16373317 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16389707) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52040 + ... + 52353.

It is an arithmetic number, because the mean of its divisors is an integer number (4123563).

Almost surely, 216389701 is an apocalyptic number.

It is an amenable number.

16389701 is a deficient number, since it is larger than the sum of its proper divisors (104551).

16389701 is a wasteful number, since it uses less digits than its factorization.

16389701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104550.

The product of its (nonzero) digits is 9072, while the sum is 35.

The square root of 16389701 is about 4048.4195681772. The cubic root of 16389701 is about 254.0136237965.

The spelling of 16389701 in words is "sixteen million, three hundred eighty-nine thousand, seven hundred one".

Divisors: 1 157 104393 16389701