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7642123073 = 133111890211
BaseRepresentation
bin1110001111000000…
…11000101101000001
3201201121000002001022
413013200120231001
5111122340414243
63302153115225
7360243655124
oct70740305501
921647002038
107642123073
1132718631a2
1215933b8b15
1394a35c820
14526d4a3bb
152eada7b68
hex1c7818b41

7642123073 has 8 divisors (see below), whose sum is σ = 8256446016. Its totient is φ = 7031581200.

The previous prime is 7642123043. The next prime is 7642123081. The reversal of 7642123073 is 3703212467.

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 7642123073 - 228 = 7373687617 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7642123043) 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, 941063 + ... + 949148.

It is an arithmetic number, because the mean of its divisors is an integer number (1032055752).

Almost surely, 27642123073 is an apocalyptic number.

It is an amenable number.

7642123073 is a deficient number, since it is larger than the sum of its proper divisors (614322943).

7642123073 is a wasteful number, since it uses less digits than its factorization.

7642123073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1890535.

The product of its (nonzero) digits is 42336, while the sum is 35.

The square root of 7642123073 is about 87419.2374308996. The cubic root of 7642123073 is about 1969.7208218363.

The spelling of 7642123073 in words is "seven billion, six hundred forty-two million, one hundred twenty-three thousand, seventy-three".

Divisors: 1 13 311 4043 1890211 24572743 587855621 7642123073