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36866161 = 311189231
BaseRepresentation
bin1000110010100…
…0100001110001
32120100222212101
42030220201301
533414204121
63354100401
7625233343
oct214504161
976328771
1036866161
11198a0102
121041a701
13783a2c7
144c79293
153383491
hex2328871

36866161 has 4 divisors (see below), whose sum is σ = 38055424. Its totient is φ = 35676900.

The previous prime is 36866153. The next prime is 36866173. The reversal of 36866161 is 16166863.

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, and also an emirpimes, since its reverse is a distinct semiprime: 16166863 = 116313901.

It is a cyclic number.

It is not a de Polignac number, because 36866161 - 23 = 36866153 is a prime.

It is a super-2 number, since 2×368661612 = 2718227653755842, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 36866161.

It is not an unprimeable number, because it can be changed into a prime (36866461) 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, 594585 + ... + 594646.

It is an arithmetic number, because the mean of its divisors is an integer number (9513856).

Almost surely, 236866161 is an apocalyptic number.

36866161 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

36866161 is a deficient number, since it is larger than the sum of its proper divisors (1189263).

36866161 is a wasteful number, since it uses less digits than its factorization.

36866161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1189262.

The product of its digits is 31104, while the sum is 37.

The square root of 36866161 is about 6071.7510653847. The cubic root of 36866161 is about 332.8199148326.

The spelling of 36866161 in words is "thirty-six million, eight hundred sixty-six thousand, one hundred sixty-one".

Divisors: 1 31 1189231 36866161