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5212115 = 51723607
BaseRepresentation
bin10011111000011111010011
3100210210200022
4103320133103
52313241430
6303414055
762205446
oct23703723
910723608
105212115
112a3aa37
1218b432b
1311064bc
1499965d
156ce4e5
hex4f87d3

5212115 has 12 divisors (see below), whose sum is σ = 6645936. Its totient is φ = 3923328.

The previous prime is 5212111. The next prime is 5212133. The reversal of 5212115 is 5112125.

It is not a de Polignac number, because 5212115 - 22 = 5212111 is a prime.

It is a super-2 number, since 2×52121152 = 54332285546450, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5212093 and 5212102.

It is not an unprimeable number, because it can be changed into a prime (5212111) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 359 + ... + 3248.

It is an arithmetic number, because the mean of its divisors is an integer number (553828).

Almost surely, 25212115 is an apocalyptic number.

5212115 is a deficient number, since it is larger than the sum of its proper divisors (1433821).

5212115 is a wasteful number, since it uses less digits than its factorization.

5212115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3646 (or 3629 counting only the distinct ones).

The product of its digits is 100, while the sum is 17.

The square root of 5212115 is about 2283.0056942548. The cubic root of 5212115 is about 173.3822614175.

It can be divided in two parts, 52 and 12115, that added together give a cube (12167 = 233).

The spelling of 5212115 in words is "five million, two hundred twelve thousand, one hundred fifteen".

Divisors: 1 5 17 85 289 1445 3607 18035 61319 306595 1042423 5212115