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5217448261 = 291391817151
BaseRepresentation
bin1001101101111101…
…11111000101000101
3111110121112211111111
410312332333011011
541141131321021
62221420005021
7243202402264
oct46676770505
914417484444
105217448261
112238128113
121017390771
13651c149bc
14376d065db
152080aa8e1
hex136fbf145

5217448261 has 16 divisors (see below), whose sum is σ = 5466988800. Its totient is φ = 4972968000.

The previous prime is 5217448259. The next prime is 5217448297. The reversal of 5217448261 is 1628447125.

It is a cyclic number.

It is not a de Polignac number, because 5217448261 - 21 = 5217448259 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5217448661) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 726036 + ... + 733186.

It is an arithmetic number, because the mean of its divisors is an integer number (341686800).

Almost surely, 25217448261 is an apocalyptic number.

It is an amenable number.

5217448261 is a deficient number, since it is larger than the sum of its proper divisors (249540539).

5217448261 is a wasteful number, since it uses less digits than its factorization.

5217448261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7500.

The product of its digits is 107520, while the sum is 40.

The square root of 5217448261 is about 72231.9061149573. The cubic root of 5217448261 is about 1734.4137866243.

The spelling of 5217448261 in words is "five billion, two hundred seventeen million, four hundred forty-eight thousand, two hundred sixty-one".

Divisors: 1 29 139 181 4031 5249 7151 25159 207379 729611 993989 1294331 28825681 37535599 179912009 5217448261