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70040153 = 179774217
BaseRepresentation
bin1000010110010…
…11101001011001
311212210102000202
410023023221121
5120412241103
610541111545
71510221461
oct413135131
9155712022
1070040153
1136599227
121b5585b5
1311683ba1
149432ba1
156237988
hex42cba59

70040153 has 8 divisors (see below), whose sum is σ = 74253672. Its totient is φ = 65837056.

The previous prime is 70040123. The next prime is 70040197. The reversal of 70040153 is 35104007.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 51308569 + 18731584 = 7163^2 + 4328^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 70040153 - 214 = 70023769 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (70040123) 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 7 ways as a sum of consecutive naturals, for example, 14501 + ... + 18717.

It is an arithmetic number, because the mean of its divisors is an integer number (9281709).

Almost surely, 270040153 is an apocalyptic number.

It is an amenable number.

70040153 is a deficient number, since it is larger than the sum of its proper divisors (4213519).

70040153 is a wasteful number, since it uses less digits than its factorization.

70040153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5211.

The product of its (nonzero) digits is 420, while the sum is 20.

The square root of 70040153 is about 8368.9995220456. Note that the first 3 decimals coincide. The cubic root of 70040153 is about 412.2073158560.

The spelling of 70040153 in words is "seventy million, forty thousand, one hundred fifty-three".

Divisors: 1 17 977 4217 16609 71689 4120009 70040153