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16398101 = 31528971
BaseRepresentation
bin111110100011…
…011100010101
31010212002222002
4332203130111
513144214401
61343245045
7256244606
oct76433425
933762862
1016398101
119290155
1255a9785
133521b25
14226bdad
15168da6b
hexfa3715

16398101 has 4 divisors (see below), whose sum is σ = 16927104. Its totient is φ = 15869100.

The previous prime is 16398091. The next prime is 16398119. The reversal of 16398101 is 10189361.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-16398101 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 (16398131) 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, 264455 + ... + 264516.

It is an arithmetic number, because the mean of its divisors is an integer number (4231776).

Almost surely, 216398101 is an apocalyptic number.

It is an amenable number.

16398101 is a deficient number, since it is larger than the sum of its proper divisors (529003).

16398101 is an equidigital number, since it uses as much as digits as its factorization.

16398101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 529002.

The product of its (nonzero) digits is 1296, while the sum is 29.

The square root of 16398101 is about 4049.4568771627. The cubic root of 16398101 is about 254.0570118164.

The spelling of 16398101 in words is "sixteen million, three hundred ninety-eight thousand, one hundred one".

Divisors: 1 31 528971 16398101