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5122215 = 3257223101
BaseRepresentation
bin10011100010100010100111
3100122020100200
4103202202213
52302402330
6301441543
761352400
oct23424247
910566320
105122215
11298943a
1218702b3
1310a45c7
149749a7
156b2a60
hex4e28a7

5122215 has 72 divisors (see below), whose sum is σ = 10883808. Its totient is φ = 2217600.

The previous prime is 5122213. The next prime is 5122259.

5122215 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 5122215 - 21 = 5122213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5122211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 50665 + ... + 50765.

It is an arithmetic number, because the mean of its divisors is an integer number (151164).

Almost surely, 25122215 is an apocalyptic number.

5122215 is an abundant number, since it is smaller than the sum of its proper divisors (5761593).

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

5122215 is a wasteful number, since it uses less digits than its factorization.

5122215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149 (or 139 counting only the distinct ones).

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

The square root of 5122215 is about 2263.2310973473. The cubic root of 5122215 is about 172.3796261653.

The spelling of 5122215 in words is "five million, one hundred twenty-two thousand, two hundred fifteen".

Divisors: 1 3 5 7 9 15 21 23 35 45 49 63 69 101 105 115 147 161 207 245 303 315 345 441 483 505 707 735 805 909 1035 1127 1449 1515 2121 2205 2323 2415 3381 3535 4545 4949 5635 6363 6969 7245 10143 10605 11615 14847 16261 16905 20907 24745 31815 34845 44541 48783 50715 74235 81305 104535 113827 146349 222705 243915 341481 569135 731745 1024443 1707405 5122215