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70504144 = 244406509
BaseRepresentation
bin1000011001111…
…00111011010000
311220122222111121
410030330323100
5121022113034
610555052024
71514163304
oct414747320
9156588447
1070504144
1136885897
121b741014
13117b7139
149513d04
1562ca1b4
hex433ced0

70504144 has 10 divisors (see below), whose sum is σ = 136601810. Its totient is φ = 35252064.

The previous prime is 70504127. The next prime is 70504171. The reversal of 70504144 is 44140507.

It can be written as a sum of positive squares in only one way, i.e., 41473600 + 29030544 = 6440^2 + 5388^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2203239 + ... + 2203270.

It is an arithmetic number, because the mean of its divisors is an integer number (13660181).

Almost surely, 270504144 is an apocalyptic number.

It is an amenable number.

70504144 is a deficient number, since it is larger than the sum of its proper divisors (66097666).

70504144 is a wasteful number, since it uses less digits than its factorization.

70504144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4406517 (or 4406511 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 25.

The square root of 70504144 is about 8396.6745798560. The cubic root of 70504144 is about 413.1155552964.

The spelling of 70504144 in words is "seventy million, five hundred four thousand, one hundred forty-four".

Divisors: 1 2 4 8 16 4406509 8813018 17626036 35252072 70504144