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853374830069 = 4318811975949
BaseRepresentation
bin11000110101100010001…
…10101000010111110101
310000120201011022001010202
430122301012220113311
5102440202424030234
61452011320130245
7115440265241336
oct14326106502765
93016634261122
10853374830069
112a9a06931603
12119481606985
136261bc6b868
142d436d9028d
15172e90bb77e
hexc6b11a85f5

853374830069 has 4 divisors (see below), whose sum is σ = 853377237900. Its totient is φ = 853372422240.

The previous prime is 853374830053. The next prime is 853374830101. The reversal of 853374830069 is 960038473358.

It is a happy number.

853374830069 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 277005373969 + 576369456100 = 526313^2 + 759190^2 .

It is a cyclic number.

It is not a de Polignac number, because 853374830069 - 24 = 853374830053 is a prime.

It is a super-2 number, since 2×8533748300692 (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 853374829996 and 853374830023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (853374830369) 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, 556094 + ... + 1419855.

It is an arithmetic number, because the mean of its divisors is an integer number (213344309475).

Almost surely, 2853374830069 is an apocalyptic number.

It is an amenable number.

853374830069 is a deficient number, since it is larger than the sum of its proper divisors (2407831).

853374830069 is a wasteful number, since it uses less digits than its factorization.

853374830069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2407830.

The product of its (nonzero) digits is 13063680, while the sum is 56.

The spelling of 853374830069 in words is "eight hundred fifty-three billion, three hundred seventy-four million, eight hundred thirty thousand, sixty-nine".

Divisors: 1 431881 1975949 853374830069