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156216 = 23323283
BaseRepresentation
bin100110001000111000
321221021210
4212020320
514444331
63203120
71220304
oct461070
9257253
10156216
11a7405
12764a0
1356148
1440d04
1531446
hex26238

156216 has 32 divisors (see below), whose sum is σ = 408960. Its totient is φ = 49632.

The previous prime is 156157. The next prime is 156217. The reversal of 156216 is 612651.

It is a happy number.

156216 is nontrivially palindromic in base 14.

It is a junction number, because it is equal to n+sod(n) for n = 156192 and 156201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (156217) by changing a digit.

156216 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 411 + ... + 693.

It is an arithmetic number, because the mean of its divisors is an integer number (12780).

2156216 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 156216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (204480).

156216 is an abundant number, since it is smaller than the sum of its proper divisors (252744).

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

156216 is a wasteful number, since it uses less digits than its factorization.

156216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315 (or 311 counting only the distinct ones).

The product of its digits is 360, while the sum is 21.

The square root of 156216 is about 395.2416982050. The cubic root of 156216 is about 53.8569602592.

Adding to 156216 its reverse (612651), we get a palindrome (768867).

The spelling of 156216 in words is "one hundred fifty-six thousand, two hundred sixteen".

Divisors: 1 2 3 4 6 8 12 23 24 46 69 92 138 184 276 283 552 566 849 1132 1698 2264 3396 6509 6792 13018 19527 26036 39054 52072 78108 156216