Search a number
-
+
213101312 = 28832427
BaseRepresentation
bin11001011001110…
…10101100000000
3112211222200001012
430230322230000
5414023220222
633051300052
75165221424
oct1454725400
9484880035
10213101312
11aa321196
125b44a628
13351c3668
1420432b84
1513a961e2
hexcb3ab00

213101312 has 18 divisors (see below), whose sum is σ = 425370708. Its totient is φ = 106550528.

The previous prime is 213101293. The next prime is 213101327.

213101312 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×2131013122 = 90824338352242688, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 415958 + ... + 416469.

It is an arithmetic number, because the mean of its divisors is an integer number (23631706).

Almost surely, 2213101312 is an apocalyptic number.

It is an amenable number.

213101312 is a deficient number, since it is larger than the sum of its proper divisors (212269396).

213101312 is an frugal number, since it uses more digits than its factorization.

213101312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 832443 (or 832429 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 213101312 is about 14597.9899986265. The cubic root of 213101312 is about 597.3039331476.

It can be divided in two parts, 21310 and 1312, that added together give a palindrome (22622).

The spelling of 213101312 in words is "two hundred thirteen million, one hundred one thousand, three hundred twelve".

Divisors: 1 2 4 8 16 32 64 128 256 832427 1664854 3329708 6659416 13318832 26637664 53275328 106550656 213101312