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4542045444 = 2232126167929
BaseRepresentation
bin1000011101011101…
…00001110100000100
3102201112122211000100
410032232201310010
533300230423234
62030411444100
7220361514666
oct41656416404
912645584010
104542045444
111a20958a72
12a69156630
13575008371
14311332536
151b8b46399
hex10eba1d04

4542045444 has 18 divisors (see below), whose sum is σ = 11481281630. Its totient is φ = 1514015136.

The previous prime is 4542045427. The next prime is 4542045449. The reversal of 4542045444 is 4445402454.

4542045444 is a `hidden beast` number, since 4 + 5 + 4 + 204 + 5 + 444 = 666.

It can be written as a sum of positive squares in only one way, i.e., 3494228544 + 1047816900 = 59112^2 + 32370^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×45420454442 = 41260353630722314272, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 126167929 = 4542045444 / (4 + 5 + 4 + 2 + 0 + 4 + 5 + 4 + 4 + 4).

It is a junction number, because it is equal to n+sod(n) for n = 4542045399 and 4542045408.

It is not an unprimeable number, because it can be changed into a prime (4542045449) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 63083929 + ... + 63084000.

Almost surely, 24542045444 is an apocalyptic number.

It is an amenable number.

4542045444 is an abundant number, since it is smaller than the sum of its proper divisors (6939236186).

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

4542045444 is a wasteful number, since it uses less digits than its factorization.

4542045444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126167939 (or 126167934 counting only the distinct ones).

The product of its (nonzero) digits is 204800, while the sum is 36.

The square root of 4542045444 is about 67394.6989309990. The cubic root of 4542045444 is about 1656.0895815504.

Adding to 4542045444 its reverse (4445402454), we get a palindrome (8987447898).

The spelling of 4542045444 in words is "four billion, five hundred forty-two million, forty-five thousand, four hundred forty-four".

Divisors: 1 2 3 4 6 9 12 18 36 126167929 252335858 378503787 504671716 757007574 1135511361 1514015148 2271022722 4542045444