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2071420 = 2251331257
BaseRepresentation
bin111111001101101111100
310220020110021
413321231330
51012241140
6112221524
723415061
oct7715574
93806407
102071420
11119531a
1283a8a4
13576ac0
143bcc68
152adb4a
hex1f9b7c

2071420 has 48 divisors (see below), whose sum is σ = 4854528. Its totient is φ = 737280.

The previous prime is 2071411. The next prime is 2071427. The reversal of 2071420 is 241702.

It is a junction number, because it is equal to n+sod(n) for n = 2071394 and 2071403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2071427) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7932 + ... + 8188.

It is an arithmetic number, because the mean of its divisors is an integer number (101136).

22071420 is an apocalyptic number.

2071420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2071420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2427264).

2071420 is an abundant number, since it is smaller than the sum of its proper divisors (2783108).

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

2071420 is a wasteful number, since it uses less digits than its factorization.

2071420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310 (or 308 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 16.

The square root of 2071420 is about 1439.2428565048. The cubic root of 2071420 is about 127.4743252159.

The spelling of 2071420 in words is "two million, seventy-one thousand, four hundred twenty".

Divisors: 1 2 4 5 10 13 20 26 31 52 62 65 124 130 155 257 260 310 403 514 620 806 1028 1285 1612 2015 2570 3341 4030 5140 6682 7967 8060 13364 15934 16705 31868 33410 39835 66820 79670 103571 159340 207142 414284 517855 1035710 2071420