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854053957 = 1537755541
BaseRepresentation
bin110010111001111…
…101010001000101
32012112001102210001
4302321331101011
53222114211312
6220425201301
730110224141
oct6271752105
92175042701
10854053957
113a9100419
121ba030231
13107c2a593
14815da221
154eea3057
hex32e7d445

854053957 has 4 divisors (see below), whose sum is σ = 854124876. Its totient is φ = 853983040.

The previous prime is 854053927. The next prime is 854053979. The reversal of 854053957 is 759350458.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 519566436 + 334487521 = 22794^2 + 18289^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-854053957 is a prime.

It is a super-2 number, since 2×8540539572 = 1458816322934715698, which 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 (854053927) 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, 12394 + ... + 43147.

It is an arithmetic number, because the mean of its divisors is an integer number (213531219).

Almost surely, 2854053957 is an apocalyptic number.

It is an amenable number.

854053957 is a deficient number, since it is larger than the sum of its proper divisors (70919).

854053957 is a wasteful number, since it uses less digits than its factorization.

854053957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70918.

The product of its (nonzero) digits is 756000, while the sum is 46.

The square root of 854053957 is about 29224.2015630881. The cubic root of 854053957 is about 948.7718041467.

The spelling of 854053957 in words is "eight hundred fifty-four million, fifty-three thousand, nine hundred fifty-seven".

Divisors: 1 15377 55541 854053957