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212752320 = 26351120147
BaseRepresentation
bin11001010111001…
…01011111000000
3112211022221022120
430223211133000
5413431033240
633040004240
75162236104
oct1453453700
9484287276
10212752320
11aa102a70
125b300680
1335100861
1420381904
1513a27ad0
hexcae57c0

212752320 has 112 divisors (see below), whose sum is σ = 736933248. Its totient is φ = 51573760.

The previous prime is 212752313. The next prime is 212752333. The reversal of 212752320 is 23257212.

It is a happy number.

212752320 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 487 + ... + 20633.

Almost surely, 2212752320 is an apocalyptic number.

212752320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212752320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (368466624).

212752320 is an abundant number, since it is smaller than the sum of its proper divisors (524180928).

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

212752320 is a wasteful number, since it uses less digits than its factorization.

212752320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20178 (or 20168 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 212752320 is about 14586.0316741738. The cubic root of 212752320 is about 596.9776905265.

The spelling of 212752320 in words is "two hundred twelve million, seven hundred fifty-two thousand, three hundred twenty".

Divisors: 1 2 3 4 5 6 8 10 11 12 15 16 20 22 24 30 32 33 40 44 48 55 60 64 66 80 88 96 110 120 132 160 165 176 192 220 240 264 320 330 352 440 480 528 660 704 880 960 1056 1320 1760 2112 2640 3520 5280 10560 20147 40294 60441 80588 100735 120882 161176 201470 221617 241764 302205 322352 402940 443234 483528 604410 644704 664851 805880 886468 967056 1108085 1208820 1289408 1329702 1611760 1772936 1934112 2216170 2417640 2659404 3223520 3324255 3545872 3868224 4432340 4835280 5318808 6447040 6648510 7091744 8864680 9670560 10637616 13297020 14183488 17729360 19341120 21275232 26594040 35458720 42550464 53188080 70917440 106376160 212752320