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53719081 = 1337910903
BaseRepresentation
bin1100110011101…
…1000000101001
310202002012201121
43030323000221
5102223002311
65155215241
71221414253
oct314730051
9122065647
1053719081
1128360a39
1215ba7521
13b18b150
1471c4cd3
154ab1b71
hex333b029

53719081 has 8 divisors (see below), whose sum is σ = 58009280. Its totient is φ = 49451472.

The previous prime is 53719069. The next prime is 53719091. The reversal of 53719081 is 18091735.

It is a happy number.

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 53719081 - 219 = 53194793 is a prime.

It is a super-2 number, since 2×537190812 = 5771479326969122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53719091) 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, 525 + ... + 10378.

It is an arithmetic number, because the mean of its divisors is an integer number (7251160).

Almost surely, 253719081 is an apocalyptic number.

It is an amenable number.

53719081 is a deficient number, since it is larger than the sum of its proper divisors (4290199).

53719081 is a wasteful number, since it uses less digits than its factorization.

53719081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11295.

The product of its (nonzero) digits is 7560, while the sum is 34.

The square root of 53719081 is about 7329.3301876775. The cubic root of 53719081 is about 377.3197385054.

The spelling of 53719081 in words is "fifty-three million, seven hundred nineteen thousand, eighty-one".

Divisors: 1 13 379 4927 10903 141739 4132237 53719081