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90711470227 = 722757087143
BaseRepresentation
bin101010001111011010…
…0110011000010010011
322200010211122010210111
41110132310303002103
52441234114021402
6105401113342151
76360625526530
oct1243664630223
9280124563714
1090711470227
113551a295214
12156b7107957
138728349491
1445675bdd87
15255da679d7
hex151ed33093

90711470227 has 8 divisors (see below), whose sum is σ = 104126950656. Its totient is φ = 77410164552.

The previous prime is 90711470221. The next prime is 90711470251. The reversal of 90711470227 is 72207411709.

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

It is not a de Polignac number, because 90711470227 - 235 = 56351731859 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 90711470227.

It is not an unprimeable number, because it can be changed into a prime (90711470221) 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, 28541983 + ... + 28545160.

It is an arithmetic number, because the mean of its divisors is an integer number (13015868832).

Almost surely, 290711470227 is an apocalyptic number.

90711470227 is a deficient number, since it is larger than the sum of its proper divisors (13415480429).

90711470227 is a wasteful number, since it uses less digits than its factorization.

90711470227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57087377.

The product of its (nonzero) digits is 49392, while the sum is 40.

The spelling of 90711470227 in words is "ninety billion, seven hundred eleven million, four hundred seventy thousand, two hundred twenty-seven".

Divisors: 1 7 227 1589 57087143 399610001 12958781461 90711470227