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70444160 = 275110069
BaseRepresentation
bin1000011001011…
…10010010000000
311220112221012222
410030232102000
5121013203120
610553510212
71513523363
oct414562200
9156487188
1070444160
1136844816
121b712368
1311795a47
1494da0da
1562b7525
hex432e480

70444160 has 32 divisors (see below), whose sum is σ = 168407100. Its totient is φ = 28177408.

The previous prime is 70444133. The next prime is 70444163. The reversal of 70444160 is 6144407.

It can be written as a sum of positive squares in 2 ways, for example, as 70425664 + 18496 = 8392^2 + 136^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is not an unprimeable number, because it can be changed into a prime (70444163) 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, 54395 + ... + 55674.

Almost surely, 270444160 is an apocalyptic number.

It is an amenable number.

70444160 is an abundant number, since it is smaller than the sum of its proper divisors (97962940).

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

70444160 is a wasteful number, since it uses less digits than its factorization.

70444160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110088 (or 110076 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 70444160 is about 8393.1019295610. The cubic root of 70444160 is about 412.9983642918.

Adding to 70444160 its reverse (6144407), we get a palindrome (76588567).

The spelling of 70444160 in words is "seventy million, four hundred forty-four thousand, one hundred sixty".

Divisors: 1 2 4 5 8 10 16 20 32 40 64 80 128 160 320 640 110069 220138 440276 550345 880552 1100690 1761104 2201380 3522208 4402760 7044416 8805520 14088832 17611040 35222080 70444160