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70052245 = 5193229317
BaseRepresentation
bin1000010110011…
…10100110010101
311212211000121121
410023032212111
5120413132440
610541243541
71510301644
oct413164625
9155730547
1070052245
11365a731a
121b5635b1
1311689543
14943735b
15623b34a
hex42ce995

70052245 has 16 divisors (see below), whose sum is σ = 85134960. Its totient is φ = 55332864.

The previous prime is 70052243. The next prime is 70052251. The reversal of 70052245 is 54225007.

70052245 = T116 + T117 + ... + T749.

It can be written as a sum of positive squares in 8 ways, for example, as 3319684 + 66732561 = 1822^2 + 8169^2 .

It is a cyclic number.

It is not a de Polignac number, because 70052245 - 21 = 70052243 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70052243) by changing a digit.

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 in 15 ways as a sum of consecutive naturals, for example, 220827 + ... + 221143.

It is an arithmetic number, because the mean of its divisors is an integer number (5320935).

Almost surely, 270052245 is an apocalyptic number.

It is an amenable number.

70052245 is a deficient number, since it is larger than the sum of its proper divisors (15082715).

70052245 is a wasteful number, since it uses less digits than its factorization.

70052245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 744.

The product of its (nonzero) digits is 2800, while the sum is 25.

The square root of 70052245 is about 8369.7219189170. The cubic root of 70052245 is about 412.2310361737.

The spelling of 70052245 in words is "seventy million, fifty-two thousand, two hundred forty-five".