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542150420 = 22573872503
BaseRepresentation
bin100000010100001…
…000111100010100
31101210011002120012
4200110020330110
52102242303140
6125444055352
716302126320
oct4024107424
91353132505
10542150420
112590366a9
12131694558
1388422686
1452008980
15328e2265
hex20508f14

542150420 has 24 divisors (see below), whose sum is σ = 1301161344. Its totient is φ = 185880096.

The previous prime is 542150419. The next prime is 542150429. The reversal of 542150420 is 24051245.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542150429) 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, 1936112 + ... + 1936391.

It is an arithmetic number, because the mean of its divisors is an integer number (54215056).

Almost surely, 2542150420 is an apocalyptic number.

It is an amenable number.

542150420 is an abundant number, since it is smaller than the sum of its proper divisors (759010924).

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

542150420 is a wasteful number, since it uses less digits than its factorization.

542150420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3872519 (or 3872517 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 542150420 is about 23284.1237756545. The cubic root of 542150420 is about 815.4048047369.

The spelling of 542150420 in words is "five hundred forty-two million, one hundred fifty thousand, four hundred twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 3872503 7745006 15490012 19362515 27107521 38725030 54215042 77450060 108430084 135537605 271075210 542150420