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212794252 = 221123375683
BaseRepresentation
bin11001010111011…
…11101110001100
3112211102001211121
430223233232030
5413433404002
633040530324
75162502256
oct1453575614
9484361747
10212794252
11aa131520
125b3209a4
1335116978
1420392cd6
1513a35237
hexcaefb8c

212794252 has 48 divisors (see below), whose sum is σ = 435439872. Its totient is φ = 90002880.

The previous prime is 212794247. The next prime is 212794271. The reversal of 212794252 is 252497212.

It is a happy 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, 34603 + ... + 40285.

It is an arithmetic number, because the mean of its divisors is an integer number (9071664).

Almost surely, 2212794252 is an apocalyptic number.

212794252 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

212794252 is an abundant number, since it is smaller than the sum of its proper divisors (222645620).

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

212794252 is a wasteful number, since it uses less digits than its factorization.

212794252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5758 (or 5756 counting only the distinct ones).

The product of its digits is 20160, while the sum is 34.

The square root of 212794252 is about 14587.4690059654. The cubic root of 212794252 is about 597.0169079980.

The spelling of 212794252 in words is "two hundred twelve million, seven hundred ninety-four thousand, two hundred fifty-two".

Divisors: 1 2 4 11 22 23 37 44 46 74 92 148 253 407 506 814 851 1012 1628 1702 3404 5683 9361 11366 18722 22732 37444 62513 125026 130709 210271 250052 261418 420542 522836 841084 1437799 2312981 2875598 4625962 4836233 5751196 9251924 9672466 19344932 53198563 106397126 212794252