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70142053 = 193691687
BaseRepresentation
bin1000010111001…
…00100001100101
311212222120210211
410023210201211
5120424021203
610543215421
71511124532
oct413444145
9155876724
1070142053
1136658843
121b5a7571
13116bb397
14945bd89
156257c6d
hex42e4865

70142053 has 4 divisors (see below), whose sum is σ = 73833760. Its totient is φ = 66450348.

The previous prime is 70142029. The next prime is 70142063. The reversal of 70142053 is 35024107.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 70142053 - 221 = 68044901 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70142063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1845825 + ... + 1845862.

It is an arithmetic number, because the mean of its divisors is an integer number (18458440).

Almost surely, 270142053 is an apocalyptic number.

It is an amenable number.

70142053 is a deficient number, since it is larger than the sum of its proper divisors (3691707).

70142053 is a wasteful number, since it uses less digits than its factorization.

70142053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3691706.

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 70142053 is about 8375.0852532974. The cubic root of 70142053 is about 412.4071230138.

The spelling of 70142053 in words is "seventy million, one hundred forty-two thousand, fifty-three".

Divisors: 1 19 3691687 70142053