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42949106 = 2171263209
BaseRepresentation
bin1010001111010…
…1100111110010
32222211001002122
42203311213302
541443332411
64132314242
71031030024
oct243654762
988731078
1042949106
1122275332
1212472982
138b89c95
1459c0014
153b859db
hex28f59f2

42949106 has 8 divisors (see below), whose sum is σ = 68213340. Its totient is φ = 20211328.

The previous prime is 42949103. The next prime is 42949111. The reversal of 42949106 is 60194924.

It can be written as a sum of positive squares in 2 ways, for example, as 40436881 + 2512225 = 6359^2 + 1585^2 .

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

It is not an unprimeable number, because it can be changed into a prime (42949103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 631571 + ... + 631638.

Almost surely, 242949106 is an apocalyptic number.

42949106 is a deficient number, since it is larger than the sum of its proper divisors (25264234).

42949106 is a wasteful number, since it uses less digits than its factorization.

42949106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1263228.

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 42949106 is about 6553.5567442420. The cubic root of 42949106 is about 350.2015329130.

The spelling of 42949106 in words is "forty-two million, nine hundred forty-nine thousand, one hundred six".

Divisors: 1 2 17 34 1263209 2526418 21474553 42949106