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534487420 = 22543757821
BaseRepresentation
bin11111110110111…
…010000101111100
31101020201202220101
4133312322011330
52043312044140
6125011530444
716150032235
oct3766720574
91336652811
10534487420
11254782345
1212abb9a24
138696b75c
1450db208c
1531dcb99a
hex1fdba17c

534487420 has 48 divisors (see below), whose sum is σ = 1151444448. Its totient is φ = 208293120.

The previous prime is 534487391. The next prime is 534487427. The reversal of 534487420 is 24784435.

It is a self number, because there is not a number n which added to its sum of digits gives 534487420.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (534487427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 650610 + ... + 651430.

It is an arithmetic number, because the mean of its divisors is an integer number (23988426).

Almost surely, 2534487420 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 534487420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (575722224).

534487420 is an abundant number, since it is smaller than the sum of its proper divisors (616957028).

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

534487420 is a wasteful number, since it uses less digits than its factorization.

534487420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1630 (or 1628 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 37.

The square root of 534487420 is about 23118.9839742148. The cubic root of 534487420 is about 811.5447936757.

The spelling of 534487420 in words is "five hundred thirty-four million, four hundred eighty-seven thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 43 86 172 215 430 757 821 860 1514 1642 3028 3284 3785 4105 7570 8210 15140 16420 32551 35303 65102 70606 130204 141212 162755 176515 325510 353030 621497 651020 706060 1242994 2485988 3107485 6214970 12429940 26724371 53448742 106897484 133621855 267243710 534487420