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8272739489 = 71637250429
BaseRepresentation
bin1111011010001011…
…11111110010100001
3210100112121201010212
413231011333302201
5113420310130424
63444521303505
7412002061010
oct75505776241
923315551125
108272739489
113565822693
12172a634b95
13a1abb7b31
145869c2a77
1533642210e
hex1ed17fca1

8272739489 has 8 divisors (see below), whose sum is σ = 9512564160. Its totient is φ = 7047416016.

The previous prime is 8272739471. The next prime is 8272739507. The reversal of 8272739489 is 9849372728.

It is an interprime number because it is at equal distance from previous prime (8272739471) and next prime (8272739507).

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 8272739489 - 216 = 8272673953 is a prime.

It is a super-2 number, since 2×82727394892 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8272739389) 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, 3624074 + ... + 3626355.

It is an arithmetic number, because the mean of its divisors is an integer number (1189070520).

Almost surely, 28272739489 is an apocalyptic number.

It is an amenable number.

8272739489 is a deficient number, since it is larger than the sum of its proper divisors (1239824671).

8272739489 is a wasteful number, since it uses less digits than its factorization.

8272739489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7250599.

The product of its digits is 12192768, while the sum is 59.

The square root of 8272739489 is about 90954.6012524930. The cubic root of 8272739489 is about 2022.4747867001.

The spelling of 8272739489 in words is "eight billion, two hundred seventy-two million, seven hundred thirty-nine thousand, four hundred eighty-nine".

Divisors: 1 7 163 1141 7250429 50753003 1181819927 8272739489