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7042120873 = 47173866083
BaseRepresentation
bin1101000111011111…
…00011110010101001
3200011202222210202121
412203233203302221
5103410240331443
63122441031241
7336340016434
oct64357436251
920152883677
107042120873
112a94103707
121446485521
13882c62c38
144ab3a281b
152b33894ed
hex1a3be3ca9

7042120873 has 8 divisors (see below), whose sum is σ = 7233533568. Its totient is φ = 6852440784.

The previous prime is 7042120853. The next prime is 7042120901. The reversal of 7042120873 is 3780212407.

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 7042120873 - 29 = 7042120361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7042120823) 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 7 ways as a sum of consecutive naturals, for example, 424911 + ... + 441172.

It is an arithmetic number, because the mean of its divisors is an integer number (904191696).

Almost surely, 27042120873 is an apocalyptic number.

It is an amenable number.

7042120873 is a deficient number, since it is larger than the sum of its proper divisors (191412695).

7042120873 is a wasteful number, since it uses less digits than its factorization.

7042120873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 866303.

The product of its (nonzero) digits is 18816, while the sum is 34.

The square root of 7042120873 is about 83917.3454835173. The cubic root of 7042120873 is about 1916.7603854901.

The spelling of 7042120873 in words is "seven billion, forty-two million, one hundred twenty thousand, eight hundred seventy-three".

Divisors: 1 47 173 8131 866083 40705901 149832359 7042120873