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211060380 = 223513925307
BaseRepresentation
bin11001001010010…
…00011010011100
3112201010222102010
430211020122130
5413012413010
632535431220
75141661246
oct1445103234
9481128363
10211060380
11a9157873
125a825510
133495a6cb
1420061096
15137e1620
hexc94869c

211060380 has 48 divisors (see below), whose sum is σ = 595244160. Its totient is φ = 55875648.

The previous prime is 211060373. The next prime is 211060391. The reversal of 211060380 is 83060112.

211060380 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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, 4314 + ... + 20993.

It is an arithmetic number, because the mean of its divisors is an integer number (12400920).

Almost surely, 2211060380 is an apocalyptic number.

211060380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211060380 is an abundant number, since it is smaller than the sum of its proper divisors (384183780).

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

211060380 is a wasteful number, since it uses less digits than its factorization.

211060380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25458 (or 25456 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 211060380 is about 14527.9172629803. The cubic root of 211060380 is about 595.3909630668.

The spelling of 211060380 in words is "two hundred eleven million, sixty thousand, three hundred eighty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 139 278 417 556 695 834 1390 1668 2085 2780 4170 8340 25307 50614 75921 101228 126535 151842 253070 303684 379605 506140 759210 1518420 3517673 7035346 10553019 14070692 17588365 21106038 35176730 42212076 52765095 70353460 105530190 211060380