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5215212 = 2233431123
BaseRepresentation
bin10011111001001111101100
3100210221221000
4103321033230
52313341322
6303440300
762220462
oct23711754
910727830
105215212
112a422a2
1218b6090
131107a32
1499a832
156d03ac
hex4f93ec

5215212 has 48 divisors (see below), whose sum is σ = 13847680. Its totient is φ = 1696464.

The previous prime is 5215211. The next prime is 5215229. The reversal of 5215212 is 2125125.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (5215211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4083 + ... + 5205.

Almost surely, 25215212 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 5215212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6923840).

5215212 is an abundant number, since it is smaller than the sum of its proper divisors (8632468).

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

5215212 is a wasteful number, since it uses less digits than its factorization.

5215212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1179 (or 1171 counting only the distinct ones).

The product of its digits is 200, while the sum is 18.

The square root of 5215212 is about 2283.6838660375. The cubic root of 5215212 is about 173.4165954352.

The spelling of 5215212 in words is "five million, two hundred fifteen thousand, two hundred twelve".

Divisors: 1 2 3 4 6 9 12 18 27 36 43 54 86 108 129 172 258 387 516 774 1123 1161 1548 2246 2322 3369 4492 4644 6738 10107 13476 20214 30321 40428 48289 60642 96578 121284 144867 193156 289734 434601 579468 869202 1303803 1738404 2607606 5215212