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2197113550 = 25243942271
BaseRepresentation
bin1000001011110101…
…0100101011001110
312200010020221011221
42002331110223032
513444430113200
61002003433554
7105306104602
oct20275245316
95603227157
102197113550
11a28238a25
125139858ba
132902608b8
1416bb29502
15ccd4b91a
hex82f54ace

2197113550 has 12 divisors (see below), whose sum is σ = 4086631296. Its totient is φ = 878845400.

The previous prime is 2197113517. The next prime is 2197113551. The reversal of 2197113550 is 553117912.

2197113550 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2197113551) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 21971086 + ... + 21971185.

It is an arithmetic number, because the mean of its divisors is an integer number (340552608).

Almost surely, 22197113550 is an apocalyptic number.

2197113550 is a deficient number, since it is larger than the sum of its proper divisors (1889517746).

2197113550 is a wasteful number, since it uses less digits than its factorization.

2197113550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43942283 (or 43942278 counting only the distinct ones).

The product of its (nonzero) digits is 9450, while the sum is 34.

The square root of 2197113550 is about 46873.3778385983. The cubic root of 2197113550 is about 1300.0223960639.

The spelling of 2197113550 in words is "two billion, one hundred ninety-seven million, one hundred thirteen thousand, five hundred fifty".

Divisors: 1 2 5 10 25 50 43942271 87884542 219711355 439422710 1098556775 2197113550