Base | Representation |
---|---|
bin | 110100100100000… |
… | …100111000010111 |
3 | 2021110101202112000 |
4 | 310210010320113 |
5 | 3301224404112 |
6 | 223301330343 |
7 | 30565535403 |
oct | 6444047027 |
9 | 2243352460 |
10 | 881872407 |
11 | 412880879 |
12 | 2074069b3 |
13 | 11091a5c0 |
14 | 8519c103 |
15 | 5264a7dc |
hex | 34904e17 |
881872407 has 32 divisors (see below), whose sum is σ = 1452380160. Its totient is φ = 525178080.
The previous prime is 881872367. The next prime is 881872471. The reversal of 881872407 is 704278188.
It is not a de Polignac number, because 881872407 - 212 = 881868311 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (881872487) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 29643 + ... + 51404.
It is an arithmetic number, because the mean of its divisors is an integer number (45386880).
Almost surely, 2881872407 is an apocalyptic number.
881872407 is a deficient number, since it is larger than the sum of its proper divisors (570507753).
881872407 is a wasteful number, since it uses less digits than its factorization.
881872407 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 81100 (or 81094 counting only the distinct ones).
The product of its (nonzero) digits is 200704, while the sum is 45.
The square root of 881872407 is about 29696.3365922465. The cubic root of 881872407 is about 958.9631481252.
It can be divided in two parts, 8818 and 72407, that added together give a square (81225 = 2852).
The spelling of 881872407 in words is "eight hundred eighty-one million, eight hundred seventy-two thousand, four hundred seven".
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