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6404428023 = 37304972763
BaseRepresentation
bin1011111011011101…
…11101000011110111
3121112100001122121220
411331232331003313
5101104013144043
62535301041423
7314464511550
oct57556750367
917470048556
106404428023
112797150624
1212a89b6273
137b0aca9a6
1444a807327
152773c3483
hex17dbbd0f7

6404428023 has 8 divisors (see below), whose sum is σ = 9759128448. Its totient is φ = 3659673144.

The previous prime is 6404427979. The next prime is 6404428027. The reversal of 6404428023 is 3208244046.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6404428023 - 29 = 6404427511 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6404428027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 152486361 + ... + 152486402.

It is an arithmetic number, because the mean of its divisors is an integer number (1219891056).

Almost surely, 26404428023 is an apocalyptic number.

6404428023 is a deficient number, since it is larger than the sum of its proper divisors (3354700425).

6404428023 is a wasteful number, since it uses less digits than its factorization.

6404428023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304972773.

The product of its (nonzero) digits is 36864, while the sum is 33.

The square root of 6404428023 is about 80027.6703584454. The cubic root of 6404428023 is about 1857.0636235255.

The spelling of 6404428023 in words is "six billion, four hundred four million, four hundred twenty-eight thousand, twenty-three".

Divisors: 1 3 7 21 304972763 914918289 2134809341 6404428023