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216007941 = 3193789613
BaseRepresentation
bin11001110000000…
…00010100000101
3120001110100012010
430320000110011
5420244223231
633233444433
75232015522
oct1470002405
9501410163
10216007941
11100a26a66
1260410719
13359a0666
142098c149
1513e6c546
hexce00505

216007941 has 8 divisors (see below), whose sum is σ = 303169120. Its totient is φ = 136426032.

The previous prime is 216007937. The next prime is 216007951. The reversal of 216007941 is 149700612.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 216007941 - 22 = 216007937 is a prime.

It is a super-3 number, since 3×2160079413 (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 216007899 and 216007908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216007931) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1894750 + ... + 1894863.

It is an arithmetic number, because the mean of its divisors is an integer number (37896140).

Almost surely, 2216007941 is an apocalyptic number.

It is an amenable number.

216007941 is a deficient number, since it is larger than the sum of its proper divisors (87161179).

216007941 is a wasteful number, since it uses less digits than its factorization.

216007941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3789635.

The product of its (nonzero) digits is 3024, while the sum is 30.

The square root of 216007941 is about 14697.2086125223. The cubic root of 216007941 is about 600.0073526877.

The spelling of 216007941 in words is "two hundred sixteen million, seven thousand, nine hundred forty-one".

Divisors: 1 3 19 57 3789613 11368839 72002647 216007941