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8408935384357 = 40572072697901
BaseRepresentation
bin111101001011101101110…
…0110110100010100100101
31002202212221011110022212111
41322113123212310110211
52100232444424244412
625515002300321021
71525345154301424
oct172273346642445
932685834408774
108408935384357
112752233893102
12b3985b543171
1348cc614aa981
14210dcd4372bb
15e8b080252a7
hex7a5db9b4525

8408935384357 has 4 divisors (see below), whose sum is σ = 8411008086316. Its totient is φ = 8406862682400.

The previous prime is 8408935384259. The next prime is 8408935384379. The reversal of 8408935384357 is 7534835398048.

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 7178080489636 + 1230854894721 = 2679194^2 + 1109439^2 .

It is a cyclic number.

It is not a de Polignac number, because 8408935384357 - 215 = 8408935351589 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8408935384292 and 8408935384301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8408935384387) 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, 1036344894 + ... + 1036353007.

It is an arithmetic number, because the mean of its divisors is an integer number (2102752021579).

Almost surely, 28408935384357 is an apocalyptic number.

It is an amenable number.

8408935384357 is a deficient number, since it is larger than the sum of its proper divisors (2072701959).

8408935384357 is a wasteful number, since it uses less digits than its factorization.

8408935384357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2072701958.

The product of its (nonzero) digits is 348364800, while the sum is 67.

The spelling of 8408935384357 in words is "eight trillion, four hundred eight billion, nine hundred thirty-five million, three hundred eighty-four thousand, three hundred fifty-seven".

Divisors: 1 4057 2072697901 8408935384357