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145003804757 = 720714829251
BaseRepresentation
bin1000011100001011100…
…1100111100001010101
3111212021120020111110022
42013002321213201111
54333431433223012
6150340330434525
713322221001240
oct2070271474125
9455246214408
10145003804757
115654a95a779
1224129592a45
131089b453606
147038000257
153b8a17a472
hex21c2e67855

145003804757 has 4 divisors (see below), whose sum is σ = 165718634016. Its totient is φ = 124288975500.

The previous prime is 145003804753. The next prime is 145003804793. The reversal of 145003804757 is 757408300541.

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 145003804757 - 22 = 145003804753 is a prime.

It is a super-2 number, since 2×1450038047572 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145003804753) 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, 10357414619 + ... + 10357414632.

It is an arithmetic number, because the mean of its divisors is an integer number (41429658504).

Almost surely, 2145003804757 is an apocalyptic number.

It is an amenable number.

145003804757 is a deficient number, since it is larger than the sum of its proper divisors (20714829259).

145003804757 is an equidigital number, since it uses as much as digits as its factorization.

145003804757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20714829258.

The product of its (nonzero) digits is 470400, while the sum is 44.

The spelling of 145003804757 in words is "one hundred forty-five billion, three million, eight hundred four thousand, seven hundred fifty-seven".

Divisors: 1 7 20714829251 145003804757