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2819420 = 225612311
BaseRepresentation
bin1010110000010101011100
312022020111222
422300111130
51210210140
6140232512
732651612
oct12602534
95266458
102819420
1116562aa
12b3b738
137793c6
145356b2
153aa5b5
hex2b055c

2819420 has 24 divisors (see below), whose sum is σ = 6020448. Its totient is φ = 1108800.

The previous prime is 2819413. The next prime is 2819423. The reversal of 2819420 is 249182.

It is a self number, because there is not a number n which added to its sum of digits gives 2819420.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2819423) 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, 65 + ... + 2375.

It is an arithmetic number, because the mean of its divisors is an integer number (250852).

22819420 is an apocalyptic number.

2819420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2819420 is an abundant number, since it is smaller than the sum of its proper divisors (3201028).

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

2819420 is a wasteful number, since it uses less digits than its factorization.

2819420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2381 (or 2379 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 2819420 is about 1679.1128610073. The cubic root of 2819420 is about 141.2710778580.

The spelling of 2819420 in words is "two million, eight hundred nineteen thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 61 122 244 305 610 1220 2311 4622 9244 11555 23110 46220 140971 281942 563884 704855 1409710 2819420