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3144421405 = 517413072939
BaseRepresentation
bin1011101101101100…
…0001000000011101
322010010210011021001
42323123001000131
522414432441110
61240003510301
7140631066226
oct27333010035
98103704231
103144421405
111373a42384
12739088391
133b15ac1a8
1421b87c24d
151360c063a
hexbb6c101d

3144421405 has 32 divisors (see below), whose sum is σ = 4107438720. Its totient is φ = 2301511680.

The previous prime is 3144421393. The next prime is 3144421409. The reversal of 3144421405 is 5041244413.

It is not a de Polignac number, because 3144421405 - 25 = 3144421373 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3144421409) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1068426 + ... + 1071364.

It is an arithmetic number, because the mean of its divisors is an integer number (128357460).

Almost surely, 23144421405 is an apocalyptic number.

It is an amenable number.

3144421405 is a deficient number, since it is larger than the sum of its proper divisors (963017315).

3144421405 is a wasteful number, since it uses less digits than its factorization.

3144421405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3309.

The product of its (nonzero) digits is 7680, while the sum is 28.

The square root of 3144421405 is about 56075.1407042372. The cubic root of 3144421405 is about 1465.0313380756.

Adding to 3144421405 its reverse (5041244413), we get a palindrome (8185665818).

The spelling of 3144421405 in words is "three billion, one hundred forty-four million, four hundred twenty-one thousand, four hundred five".

Divisors: 1 5 17 41 85 205 307 697 1535 2939 3485 5219 12587 14695 26095 49963 62935 120499 213979 249815 602495 902273 1069895 2048483 4511365 10242415 15338641 36993193 76693205 184965965 628884281 3144421405