Search a number
3161284 = 22721272
BaseRepresentation
bin1100000011110011000100
312221121110121
430003303010
51302130114
6151431324
735604400
oct14036304
95847417
103161284
11186a135
121085544
13868ba9
145c4100
15426a24
hex303cc4

3161284 has 27 divisors (see below), whose sum is σ = 6486543. Its totient is φ = 1344168.

The previous prime is 3161273. The next prime is 3161293. The reversal of 3161284 is 4821613.

The square root of 3161284 is 1778.

It is a perfect power (a square), and thus also a powerful number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 24829 + ... + 24955.

Almost surely, 23161284 is an apocalyptic number.

3161284 is the 1778-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3161284

3161284 is an abundant number, since it is smaller than the sum of its proper divisors (3325259).

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

3161284 is a wasteful number, since it uses less digits than its factorization.

3161284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272 (or 136 counting only the distinct ones).

The product of its digits is 1152, while the sum is 25.

The cubic root of 3161284 is about 146.7645512785.

Multiplying 3161284 by its sum of digits (25), we get a square (79032100 = 88902).

Adding to 3161284 its reverse (4821613), we get a palindrome (7982897).

It can be divided in two parts, 316 and 1284, that added together give a square (1600 = 402).

The spelling of 3161284 in words is "three million, one hundred sixty-one thousand, two hundred eighty-four".