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271720542 = 2345286757
BaseRepresentation
bin10000001100100…
…010000001011110
3200221021211111210
4100030202001132
51024030024132
642543525250
76506405112
oct2014420136
9627254453
10271720542
1112a419735
1276bb9826
13443a8cb2
1428131742
1518cc4bcc
hex1032205e

271720542 has 8 divisors (see below), whose sum is σ = 543441096. Its totient is φ = 90573512.

The previous prime is 271720531. The next prime is 271720543. The reversal of 271720542 is 245027172.

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

271720542 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (271720543) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22643373 + ... + 22643384.

It is an arithmetic number, because the mean of its divisors is an integer number (67930137).

Almost surely, 2271720542 is an apocalyptic number.

271720542 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

271720542 is a wasteful number, since it uses less digits than its factorization.

271720542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45286762.

The product of its (nonzero) digits is 7840, while the sum is 30.

The square root of 271720542 is about 16483.9480101097. The cubic root of 271720542 is about 647.7003882788.

The spelling of 271720542 in words is "two hundred seventy-one million, seven hundred twenty thousand, five hundred forty-two".

Divisors: 1 2 3 6 45286757 90573514 135860271 271720542