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3145405124 = 22786351281
BaseRepresentation
bin1011101101111011…
…0001001011000100
322010012122010200002
42323132301023010
522420210430444
61240040540432
7140642334221
oct27336611304
98105563602
103145405124
111374554474
12739481718
133b1864b84
1421ba56948
15136216d4e
hexbb7b12c4

3145405124 has 6 divisors (see below), whose sum is σ = 5504458974. Its totient is φ = 1572702560.

The previous prime is 3145405121. The next prime is 3145405139. The reversal of 3145405124 is 4215045413.

It can be written as a sum of positive squares in only one way, i.e., 1928790724 + 1216614400 = 43918^2 + 34880^2 .

It is not an unprimeable number, because it can be changed into a prime (3145405121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 393175637 + ... + 393175644.

It is an arithmetic number, because the mean of its divisors is an integer number (917409829).

Almost surely, 23145405124 is an apocalyptic number.

It is an amenable number.

3145405124 is a deficient number, since it is larger than the sum of its proper divisors (2359053850).

3145405124 is a wasteful number, since it uses less digits than its factorization.

3145405124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 786351285 (or 786351283 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 29.

The square root of 3145405124 is about 56083.9114541773. The cubic root of 3145405124 is about 1465.1840984422.

The spelling of 3145405124 in words is "three billion, one hundred forty-five million, four hundred five thousand, one hundred twenty-four".

Divisors: 1 2 4 786351281 1572702562 3145405124