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542122105 = 5715489203
BaseRepresentation
bin100000010100000…
…010000001111001
31101210002122201111
4200110002001321
52102240401410
6125443320321
716301650630
oct4024020171
91353078644
10542122105
112590173a8
121316800a1
1388412815
1451ddc517
15328d8b8a
hex20502079

542122105 has 8 divisors (see below), whose sum is σ = 743481792. Its totient is φ = 371740848.

The previous prime is 542122103. The next prime is 542122109. The reversal of 542122105 is 501221245.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 542122105 - 21 = 542122103 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (542122103) 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, 7744567 + ... + 7744636.

It is an arithmetic number, because the mean of its divisors is an integer number (92935224).

Almost surely, 2542122105 is an apocalyptic number.

It is an amenable number.

542122105 is a deficient number, since it is larger than the sum of its proper divisors (201359687).

542122105 is a wasteful number, since it uses less digits than its factorization.

542122105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15489215.

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 542122105 is about 23283.5157353867. The cubic root of 542122105 is about 815.3906090524.

The spelling of 542122105 in words is "five hundred forty-two million, one hundred twenty-two thousand, one hundred five".

Divisors: 1 5 7 35 15489203 77446015 108424421 542122105