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71713476 = 22321992041
BaseRepresentation
bin1000100011001…
…00001011000100
311222221102101200
410101210023010
5121324312401
611041022500
71530361122
oct421441304
9158842350
1071713476
113753143a
1220024a30
1311b1b713
14974a912
156468686
hex44642c4

71713476 has 18 divisors (see below), whose sum is σ = 181275822. Its totient is φ = 23904480.

The previous prime is 71713457. The next prime is 71713483. The reversal of 71713476 is 67431717.

It can be written as a sum of positive squares in only one way, i.e., 70560000 + 1153476 = 8400^2 + 1074^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 1992041 = 71713476 / (7 + 1 + 7 + 1 + 3 + 4 + 7 + 6).

It is a self number, because there is not a number n which added to its sum of digits gives 71713476.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 995985 + ... + 996056.

It is an arithmetic number, because the mean of its divisors is an integer number (10070879).

Almost surely, 271713476 is an apocalyptic number.

It is an amenable number.

71713476 is an abundant number, since it is smaller than the sum of its proper divisors (109562346).

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

71713476 is a wasteful number, since it uses less digits than its factorization.

71713476 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1992051 (or 1992046 counting only the distinct ones).

The product of its digits is 24696, while the sum is 36.

The square root of 71713476 is about 8468.3809550586. The cubic root of 71713476 is about 415.4641847254.

The spelling of 71713476 in words is "seventy-one million, seven hundred thirteen thousand, four hundred seventy-six".

Divisors: 1 2 3 4 6 9 12 18 36 1992041 3984082 5976123 7968164 11952246 17928369 23904492 35856738 71713476