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929420852664281 = 2144590943337909
BaseRepresentation
bin1101001101010011011010011…
…1110001010001011111011001
311111212210202200020122120022112
43103110312213301101133121
51433310112401240224111
613052414013442402105
7366524304104344145
oct32324664761213731
94455722606576275
10929420852664281
1124a16219641726a
12882a7ba3060335
1330b7b01992cc93
14125722d040a225
15726b5814cee8b
hex34d4da7c517d9

929420852664281 has 4 divisors (see below), whose sum is σ = 929420917448100. Its totient is φ = 929420787880464.

The previous prime is 929420852664223. The next prime is 929420852664301. The reversal of 929420852664281 is 182466258024929.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 65914182750025 + 863506669914256 = 8118755^2 + 29385484^2 .

It is a cyclic number.

It is not a de Polignac number, because 929420852664281 - 218 = 929420852402137 is a prime.

It is a super-2 number, since 2×9294208526642812 (a number of 31 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (929420852664781) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 223046 + ... + 43114863.

It is an arithmetic number, because the mean of its divisors is an integer number (232355229362025).

Almost surely, 2929420852664281 is an apocalyptic number.

It is an amenable number.

929420852664281 is a deficient number, since it is larger than the sum of its proper divisors (64783819).

929420852664281 is a wasteful number, since it uses less digits than its factorization.

929420852664281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64783818.

The product of its (nonzero) digits is 238878720, while the sum is 68.

The spelling of 929420852664281 in words is "nine hundred twenty-nine trillion, four hundred twenty billion, eight hundred fifty-two million, six hundred sixty-four thousand, two hundred eighty-one".

Divisors: 1 21445909 43337909 929420852664281