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219089441 = 1371639811
BaseRepresentation
bin11010000111100…
…00101000100001
3120021020220012202
431003300220201
5422041330231
633423502545
75300141504
oct1503605041
9507226182
10219089441
1110274115a
1261457a55
133650c12c
142115113b
151437a5cb
hexd0f0a21

219089441 has 8 divisors (see below), whose sum is σ = 222065184. Its totient is φ = 216133920.

The previous prime is 219089417. The next prime is 219089473. The reversal of 219089441 is 144980912.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-219089441 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 219089395 and 219089404.

It is not an unprimeable number, because it can be changed into a prime (219089401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17426 + ... + 27236.

It is an arithmetic number, because the mean of its divisors is an integer number (27758148).

Almost surely, 2219089441 is an apocalyptic number.

It is an amenable number.

219089441 is a deficient number, since it is larger than the sum of its proper divisors (2975743).

219089441 is a wasteful number, since it uses less digits than its factorization.

219089441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10111.

The product of its (nonzero) digits is 20736, while the sum is 38.

The square root of 219089441 is about 14801.6702098108. The cubic root of 219089441 is about 602.8470625418.

The spelling of 219089441 in words is "two hundred nineteen million, eighty-nine thousand, four hundred forty-one".

Divisors: 1 137 163 9811 22331 1344107 1599193 219089441