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828654441 = 3276218147
BaseRepresentation
bin110001011001000…
…100001101101001
32010202021000012020
4301121010031221
53144113420231
6214120535053
726351306106
oct6131041551
92122230166
10828654441
1139583238a
121b1621489
131028a6594
147c0a7aad
154cb37396
hex31644369

828654441 has 4 divisors (see below), whose sum is σ = 1104872592. Its totient is φ = 552436292.

The previous prime is 828654401. The next prime is 828654457. The reversal of 828654441 is 144456828.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 828654441 - 29 = 828653929 is a prime.

It is a super-4 number, since 4×8286544414 (a number of 37 digits) contains 4444 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 828654393 and 828654402.

It is not an unprimeable number, because it can be changed into a prime (828654401) 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 3 ways as a sum of consecutive naturals, for example, 138109071 + ... + 138109076.

It is an arithmetic number, because the mean of its divisors is an integer number (276218148).

Almost surely, 2828654441 is an apocalyptic number.

It is an amenable number.

828654441 is a deficient number, since it is larger than the sum of its proper divisors (276218151).

828654441 is a wasteful number, since it uses less digits than its factorization.

828654441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276218150.

The product of its digits is 245760, while the sum is 42.

The square root of 828654441 is about 28786.3585922221. The cubic root of 828654441 is about 939.2715198656.

The spelling of 828654441 in words is "eight hundred twenty-eight million, six hundred fifty-four thousand, four hundred forty-one".

Divisors: 1 3 276218147 828654441