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545378853 = 31737289019
BaseRepresentation
bin100000100000011…
…101001000100101
31102000020010010210
4200200131020211
52104104110403
6130041210033
716341433545
oct4040351045
91360203123
10545378853
1125a941228
12132790919
1388cb2ca6
1452609325
1532d2db03
hex2081d225

545378853 has 16 divisors (see below), whose sum is σ = 790758720. Its totient is φ = 332948736.

The previous prime is 545378837. The next prime is 545378863. The reversal of 545378853 is 358873545.

It is not a de Polignac number, because 545378853 - 24 = 545378837 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545378863) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 142623 + ... + 146396.

It is an arithmetic number, because the mean of its divisors is an integer number (49422420).

Almost surely, 2545378853 is an apocalyptic number.

It is an amenable number.

545378853 is a deficient number, since it is larger than the sum of its proper divisors (245379867).

545378853 is a wasteful number, since it uses less digits than its factorization.

545378853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289076.

The product of its digits is 2016000, while the sum is 48.

The square root of 545378853 is about 23353.3477899851. The cubic root of 545378853 is about 817.0201446542.

The spelling of 545378853 in words is "five hundred forty-five million, three hundred seventy-eight thousand, eight hundred fifty-three".

Divisors: 1 3 17 37 51 111 629 1887 289019 867057 4913323 10693703 14739969 32081109 181792951 545378853