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70057540453 = 292415777257
BaseRepresentation
bin100000100111111000…
…0010011101101100101
320200211102121210112111
41001033300103231211
52121434212243303
652103424121021
75030043161035
oct1011760235545
9220742553474
1070057540453
112779072306a
12116b2166171
1367b6342c64
1435685138c5
151c506c9b6d
hex104fc13b65

70057540453 has 4 divisors (see below), whose sum is σ = 72473317740. Its totient is φ = 67641763168.

The previous prime is 70057540439. The next prime is 70057540463. The reversal of 70057540453 is 35404575007.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 35404575007 = 50037076669.

It can be written as a sum of positive squares in 2 ways, for example, as 12304799329 + 57752741124 = 110927^2 + 240318^2 .

It is not a de Polignac number, because 70057540453 - 29 = 70057539941 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 (70057540433) 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, 1207888600 + ... + 1207888657.

It is an arithmetic number, because the mean of its divisors is an integer number (18118329435).

Almost surely, 270057540453 is an apocalyptic number.

It is an amenable number.

70057540453 is a deficient number, since it is larger than the sum of its proper divisors (2415777287).

70057540453 is a wasteful number, since it uses less digits than its factorization.

70057540453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2415777286.

The product of its (nonzero) digits is 294000, while the sum is 40.

The spelling of 70057540453 in words is "seventy billion, fifty-seven million, five hundred forty thousand, four hundred fifty-three".

Divisors: 1 29 2415777257 70057540453