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213052015 = 5114798087
BaseRepresentation
bin11001011001011…
…10101001101111
3112211220011102101
430230232221233
5414020131030
633050235531
75164624621
oct1454565157
9484804371
10213052015
11aa298150
125b425ba7
13351a70a7
142041cc11
1513a867ca
hexcb2ea6f

213052015 has 16 divisors (see below), whose sum is σ = 279521280. Its totient is φ = 154604320.

The previous prime is 213052003. The next prime is 213052039. The reversal of 213052015 is 510250312.

It is not a de Polignac number, because 213052015 - 213 = 213043823 is a prime.

It is a super-2 number, since 2×2130520152 = 90782322191120450, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 213051983 and 213052001.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22302 + ... + 30388.

It is an arithmetic number, because the mean of its divisors is an integer number (17470080).

Almost surely, 2213052015 is an apocalyptic number.

213052015 is a deficient number, since it is larger than the sum of its proper divisors (66469265).

213052015 is a wasteful number, since it uses less digits than its factorization.

213052015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8582.

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 213052015 is about 14596.3014150846. The cubic root of 213052015 is about 597.2578712338.

It can be divided in two parts, 2130 and 52015, that added together give a palindrome (54145).

The spelling of 213052015 in words is "two hundred thirteen million, fifty-two thousand, fifteen".

Divisors: 1 5 11 55 479 2395 5269 8087 26345 40435 88957 444785 3873673 19368365 42610403 213052015