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531348020 = 22577351991
BaseRepresentation
bin11111101010111…
…011101000110100
31101000211021110022
4133222323220310
52042011114040
6124420344312
716111245410
oct3752735064
91330737408
10531348020
11252a286a5
12129b45098
138610c818
14507d5d40
15319ab6b5
hex1fabba34

531348020 has 48 divisors (see below), whose sum is σ = 1292729088. Its totient is φ = 179677440.

The previous prime is 531348017. The next prime is 531348031. The reversal of 531348020 is 20843135.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15776 + ... + 36215.

It is an arithmetic number, because the mean of its divisors is an integer number (26931856).

Almost surely, 2531348020 is an apocalyptic number.

It is an amenable number.

531348020 is an abundant number, since it is smaller than the sum of its proper divisors (761381068).

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

531348020 is a wasteful number, since it uses less digits than its factorization.

531348020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52080 (or 52078 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 531348020 is about 23050.9873975064. The cubic root of 531348020 is about 809.9527585109.

The spelling of 531348020 in words is "five hundred thirty-one million, three hundred forty-eight thousand, twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 73 140 146 292 365 511 730 1022 1460 2044 2555 5110 10220 51991 103982 207964 259955 363937 519910 727874 1039820 1455748 1819685 3639370 3795343 7278740 7590686 15181372 18976715 26567401 37953430 53134802 75906860 106269604 132837005 265674010 531348020