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2143150771 = 19532128253
BaseRepresentation
bin111111110111101…
…1110001010110011
312112100201100011111
41333233132022303
513342121311041
6552355054151
7104052323656
oct17757361263
95470640144
102143150771
119aa830993
124b98a1357
13282018868
141648bd89d
15c823c981
hex7fbde2b3

2143150771 has 8 divisors (see below), whose sum is σ = 2298514320. Its totient is φ = 1992043872.

The previous prime is 2143150753. The next prime is 2143150777. The reversal of 2143150771 is 1770513412.

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

It is a cyclic number.

It is not a de Polignac number, because 2143150771 - 25 = 2143150739 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2143150777) 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, 1063120 + ... + 1065133.

It is an arithmetic number, because the mean of its divisors is an integer number (287314290).

Almost surely, 22143150771 is an apocalyptic number.

2143150771 is a deficient number, since it is larger than the sum of its proper divisors (155363549).

2143150771 is a wasteful number, since it uses less digits than its factorization.

2143150771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2128325.

The product of its (nonzero) digits is 5880, while the sum is 31.

The square root of 2143150771 is about 46294.1764264146. The cubic root of 2143150771 is about 1289.2908730012.

The spelling of 2143150771 in words is "two billion, one hundred forty-three million, one hundred fifty thousand, seven hundred seventy-one".

Divisors: 1 19 53 1007 2128253 40436807 112797409 2143150771