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212752052 = 22154934337
BaseRepresentation
bin11001010111001…
…01011010110100
3112211022220221122
430223211122310
5413431031202
633040003112
75162235242
oct1453453264
9484286848
10212752052
11aa102847
125b300498
13351006b6
1420381792
1513a279a2
hexcae56b4

212752052 has 12 divisors (see below), whose sum is σ = 372567300. Its totient is φ = 106304256.

The previous prime is 212752049. The next prime is 212752081. The reversal of 212752052 is 250257212.

It can be written as a sum of positive squares in 2 ways, for example, as 82700836 + 130051216 = 9094^2 + 11404^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10973 + ... + 23364.

It is an arithmetic number, because the mean of its divisors is an integer number (31047275).

Almost surely, 2212752052 is an apocalyptic number.

It is an amenable number.

212752052 is a deficient number, since it is larger than the sum of its proper divisors (159815248).

212752052 is a wasteful number, since it uses less digits than its factorization.

212752052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35890 (or 35888 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 26.

The square root of 212752052 is about 14586.0224872993. The cubic root of 212752052 is about 596.9774398593.

The spelling of 212752052 in words is "two hundred twelve million, seven hundred fifty-two thousand, fifty-two".

Divisors: 1 2 4 1549 3098 6196 34337 68674 137348 53188013 106376026 212752052