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4345042553 = 31140162663
BaseRepresentation
bin1000000101111110…
…00001011001111001
3102012210222000211222
410002333001121321
532344312330203
61555053201425
7212450152355
oct40277013171
912183860758
104345042553
11192a732865
12a13190275
135432602c7
142d30d0465
151a66d0038
hex102fc1679

4345042553 has 4 divisors (see below), whose sum is σ = 4485205248. Its totient is φ = 4204879860.

The previous prime is 4345042549. The next prime is 4345042591. The reversal of 4345042553 is 3552405434.

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, and also an emirpimes, since its reverse is a distinct semiprime: 3552405434 = 21776202717.

It is a cyclic number.

It is not a de Polignac number, because 4345042553 - 22 = 4345042549 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4345042753) 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, 70081301 + ... + 70081362.

It is an arithmetic number, because the mean of its divisors is an integer number (1121301312).

Almost surely, 24345042553 is an apocalyptic number.

It is an amenable number.

4345042553 is a deficient number, since it is larger than the sum of its proper divisors (140162695).

4345042553 is a wasteful number, since it uses less digits than its factorization.

4345042553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140162694.

The product of its (nonzero) digits is 144000, while the sum is 35.

The square root of 4345042553 is about 65916.9367689367. The cubic root of 4345042553 is about 1631.7915430484.

Adding to 4345042553 its reverse (3552405434), we get a palindrome (7897447987).

The spelling of 4345042553 in words is "four billion, three hundred forty-five million, forty-two thousand, five hundred fifty-three".

Divisors: 1 31 140162663 4345042553