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4885631681 = 727910911579
BaseRepresentation
bin1001000110011010…
…01101001011000001
3110121111011210201112
410203031031023001
540001210203211
62124444013105
7232033120100
oct44315151301
913544153645
104885631681
1120878a2437
12b44231195
135cb257128
14344c10037
151d8db488b
hex12334d2c1

4885631681 has 24 divisors (see below), whose sum is σ = 5808528000. Its totient is φ = 4096389024.

The previous prime is 4885631659. The next prime is 4885631701. The reversal of 4885631681 is 1861365884.

It is not a de Polignac number, because 4885631681 - 218 = 4885369537 is a prime.

It is a super-2 number, since 2×48856316812 = 47738793844781771522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4885621681) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 416150 + ... + 427728.

It is an arithmetic number, because the mean of its divisors is an integer number (242022000).

Almost surely, 24885631681 is an apocalyptic number.

It is an amenable number.

4885631681 is a deficient number, since it is larger than the sum of its proper divisors (922896319).

4885631681 is a wasteful number, since it uses less digits than its factorization.

4885631681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11781 (or 11774 counting only the distinct ones).

The product of its digits is 1105920, while the sum is 50.

The square root of 4885631681 is about 69897.2938031223. The cubic root of 4885631681 is about 1696.8374514293.

The spelling of 4885631681 in words is "four billion, eight hundred eighty-five million, six hundred thirty-one thousand, six hundred eighty-one".

Divisors: 1 7 49 79 109 553 763 3871 5341 8611 11579 60277 81053 421939 567371 914741 1262111 6403187 8834777 44822309 61843439 99706769 697947383 4885631681