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1087107841 = 372794089
BaseRepresentation
bin100000011001011…
…1111001100000001
32210202120210121101
41000302333030001
54211244422331
6255512254401
735640156421
oct10062771401
92722523541
101087107841
1150870a236
122640a1401
131442b88a1
14a4544481
156568b061
hex40cbf301

1087107841 has 6 divisors (see below), whose sum is σ = 1117284630. Its totient is φ = 1057725216.

The previous prime is 1087107839. The next prime is 1087107859. The reversal of 1087107841 is 1487017801.

It can be written as a sum of positive squares in 3 ways, for example, as 868186225 + 218921616 = 29465^2 + 14796^2 .

It is not a de Polignac number, because 1087107841 - 21 = 1087107839 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

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 1087107841.

It is not an unprimeable number, because it can be changed into a prime (1087107821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 395676 + ... + 398413.

It is an arithmetic number, because the mean of its divisors is an integer number (186214105).

Almost surely, 21087107841 is an apocalyptic number.

It is an amenable number.

1087107841 is a deficient number, since it is larger than the sum of its proper divisors (30176789).

1087107841 is an frugal number, since it uses more digits than its factorization.

1087107841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 794163 (or 794126 counting only the distinct ones).

The product of its (nonzero) digits is 12544, while the sum is 37.

The square root of 1087107841 is about 32971.3184601405. The cubic root of 1087107841 is about 1028.2314329150.

The spelling of 1087107841 in words is "one billion, eighty-seven million, one hundred seven thousand, eight hundred forty-one".

Divisors: 1 37 1369 794089 29381293 1087107841