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212152115 = 5722337649
BaseRepresentation
bin11001010010100…
…10111100110011
3112210012102222202
430221102330303
5413302331430
633015053415
75154156200
oct1451227463
9483172882
10212152115
11a983302a
125b07126b
1334c505c6
1420266ca7
1513959d45
hexca52f33

212152115 has 24 divisors (see below), whose sum is σ = 309031200. Its totient is φ = 139147008.

The previous prime is 212152099. The next prime is 212152159. The reversal of 212152115 is 511251212.

It is not a de Polignac number, because 212152115 - 24 = 212152099 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13190 + ... + 24459.

It is an arithmetic number, because the mean of its divisors is an integer number (12876300).

Almost surely, 2212152115 is an apocalyptic number.

212152115 is a deficient number, since it is larger than the sum of its proper divisors (96879085).

212152115 is a wasteful number, since it uses less digits than its factorization.

212152115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37691 (or 37684 counting only the distinct ones).

The product of its digits is 200, while the sum is 20.

The square root of 212152115 is about 14565.4424924202. The cubic root of 212152115 is about 596.4157750388.

The spelling of 212152115 in words is "two hundred twelve million, one hundred fifty-two thousand, one hundred fifteen".

Divisors: 1 5 7 23 35 49 115 161 245 805 1127 5635 37649 188245 263543 865927 1317715 1844801 4329635 6061489 9224005 30307445 42430423 212152115