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215505561041 = 4742373108211
BaseRepresentation
bin1100100010110100100…
…0011110010111010001
3202121020221201210112222
43020231020132113101
512012323410423131
6243000224030425
721366300021221
oct3105510362721
9677227653488
10215505561041
11834392a8761
1235924462415
1317425819574
14a605508081
15591484e87b
hex322d21e5d1

215505561041 has 8 divisors (see below), whose sum is σ = 220098013824. Its totient is φ = 210913409520.

The previous prime is 215505561001. The next prime is 215505561059. The reversal of 215505561041 is 140165505512.

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-215505561041 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 215505560992 and 215505561010.

It is not an unprimeable number, because it can be changed into a prime (215505561001) 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, 1937426 + ... + 2045636.

It is an arithmetic number, because the mean of its divisors is an integer number (27512251728).

Almost surely, 2215505561041 is an apocalyptic number.

It is an amenable number.

215505561041 is a deficient number, since it is larger than the sum of its proper divisors (4592452783).

215505561041 is a wasteful number, since it uses less digits than its factorization.

215505561041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150631.

The product of its (nonzero) digits is 30000, while the sum is 35.

The spelling of 215505561041 in words is "two hundred fifteen billion, five hundred five million, five hundred sixty-one thousand, forty-one".

Divisors: 1 47 42373 108211 1991531 5085917 4585224703 215505561041