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2591420 = 225139967
BaseRepresentation
bin1001111000101010111100
311212122202112
421320222330
51130411140
6131313152
731012106
oct11705274
94778675
102591420
11150aa77
12a4b7b8
136c96b0
144b6576
15362c65
hex278abc

2591420 has 24 divisors (see below), whose sum is σ = 5861184. Its totient is φ = 956736.

The previous prime is 2591419. The next prime is 2591441. The reversal of 2591420 is 241952.

It is a plaindrome in base 16.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4724 + ... + 5243.

It is an arithmetic number, because the mean of its divisors is an integer number (244216).

22591420 is an apocalyptic number.

2591420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2591420 is an abundant number, since it is smaller than the sum of its proper divisors (3269764).

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

2591420 is a wasteful number, since it uses less digits than its factorization.

2591420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9989 (or 9987 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 2591420 is about 1609.7888060239. The cubic root of 2591420 is about 137.3554624430.

The spelling of 2591420 in words is "two million, five hundred ninety-one thousand, four hundred twenty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 260 9967 19934 39868 49835 99670 129571 199340 259142 518284 647855 1295710 2591420