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16101401 = 37472197
BaseRepresentation
bin111101011011…
…000000011001
31010022000222012
4331123000121
513110221101
61333035305
7253600601
oct75330031
933260865
1016101401
1190a8248
125485b35
133449a74
1421d1c01
151630bbb
hexf5b019

16101401 has 12 divisors (see below), whose sum is σ = 16981668. Its totient is φ = 15255072.

The previous prime is 16101367. The next prime is 16101413. The reversal of 16101401 is 10410161.

16101401 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 15217801 + 883600 = 3901^2 + 940^2 .

It is a de Polignac number, because none of the positive numbers 2k-16101401 is a prime.

It is a super-2 number, since 2×161014012 = 518510228325602, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16101301) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 81635 + ... + 81831.

It is an arithmetic number, because the mean of its divisors is an integer number (1415139).

Almost surely, 216101401 is an apocalyptic number.

It is an amenable number.

16101401 is a deficient number, since it is larger than the sum of its proper divisors (880267).

16101401 is an equidigital number, since it uses as much as digits as its factorization.

16101401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328 (or 281 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 14.

The square root of 16101401 is about 4012.6551060364. The cubic root of 16101401 is about 252.5154112738.

Adding to 16101401 its reverse (10410161), we get a palindrome (26511562).

The spelling of 16101401 in words is "sixteen million, one hundred one thousand, four hundred one".

Divisors: 1 37 47 197 1739 2209 7289 9259 81733 342583 435173 16101401