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6349986144 = 253327112
BaseRepresentation
bin1011110100111110…
…10001100101100000
3121101112121201102000
411322133101211200
5101001044024034
62530034124000
7313233664065
oct57237214540
917345551360
106349986144
112769446637
121292720600
137a2748868
144434b4c6c
1527271c599
hex17a7d1960

6349986144 has 72 divisors (see below), whose sum is σ = 18527627160. Its totient is φ = 2115881280.

The previous prime is 6349986133. The next prime is 6349986163. The reversal of 6349986144 is 4416899436.

It is a happy number.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

6349986144 is a `hidden beast` number, since 6 + 3 + 499 + 8 + 6 + 144 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

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 in 11 ways as a sum of consecutive naturals, for example, 2340949 + ... + 2343659.

It is an arithmetic number, because the mean of its divisors is an integer number (257328155).

Almost surely, 26349986144 is an apocalyptic number.

It is an amenable number.

6349986144 is an abundant number, since it is smaller than the sum of its proper divisors (12177641016).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6349986144 is an frugal number, since it uses more digits than its factorization.

6349986144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5441 (or 2716 counting only the distinct ones).

The product of its digits is 4478976, while the sum is 54.

The square root of 6349986144 is about 79686.8003122223. The cubic root of 6349986144 is about 1851.7865521288.

Multiplying 6349986144 by its sum of digits (54), we get a square (342899251776 = 5855762).

6349986144 divided by its sum of digits (54) gives a square (117592336 = 108442).

The spelling of 6349986144 in words is "six billion, three hundred forty-nine million, nine hundred eighty-six thousand, one hundred forty-four".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 27 32 36 48 54 72 96 108 144 216 288 432 864 2711 5422 8133 10844 16266 21688 24399 32532 43376 48798 65064 73197 86752 97596 130128 146394 195192 260256 292788 390384 585576 780768 1171152 2342304 7349521 14699042 22048563 29398084 44097126 58796168 66145689 88194252 117592336 132291378 176388504 198437067 235184672 264582756 352777008 396874134 529165512 705554016 793748268 1058331024 1587496536 2116662048 3174993072 6349986144