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8742620371 = 61714169563
BaseRepresentation
bin10000010010001100…
…11100110011010011
3211120021210010112111
420021012130303103
5120401102322441
64003304410151
7426436022062
oct101106346323
924507703474
108742620371
113786a880a1
12183ba76957
13a94355964
145cd1781d9
153627db081
hex20919ccd3

8742620371 has 4 divisors (see below), whose sum is σ = 8756790552. Its totient is φ = 8728450192.

The previous prime is 8742620351. The next prime is 8742620387. The reversal of 8742620371 is 1730262478.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 8742620371 - 229 = 8205749459 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8742620351) 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, 7084165 + ... + 7085398.

It is an arithmetic number, because the mean of its divisors is an integer number (2189197638).

Almost surely, 28742620371 is an apocalyptic number.

8742620371 is a deficient number, since it is larger than the sum of its proper divisors (14170181).

8742620371 is a wasteful number, since it uses less digits than its factorization.

8742620371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14170180.

The product of its (nonzero) digits is 112896, while the sum is 40.

The square root of 8742620371 is about 93501.9805726061. The cubic root of 8742620371 is about 2060.0631811300.

The spelling of 8742620371 in words is "eight billion, seven hundred forty-two million, six hundred twenty thousand, three hundred seventy-one".

Divisors: 1 617 14169563 8742620371