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4957393477 = 17291611381
BaseRepresentation
bin1001001110111101…
…11101001001000101
3110210111012200101211
410213132331021011
540123043042402
62135530051421
7233564102131
oct44736751105
913714180354
104957393477
112114357103
12b64279b71
1361009182a
143505703c1
151e033c4d7
hex1277bd245

4957393477 has 4 divisors (see below), whose sum is σ = 5249004876. Its totient is φ = 4665782080.

The previous prime is 4957393457. The next prime is 4957393499. The reversal of 4957393477 is 7743937594.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7743937594 = 23871968797.

It can be written as a sum of positive squares in 2 ways, for example, as 1446356961 + 3511036516 = 38031^2 + 59254^2 .

It is a cyclic number.

It is not a de Polignac number, because 4957393477 - 223 = 4949004869 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4957393447) 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, 145805674 + ... + 145805707.

It is an arithmetic number, because the mean of its divisors is an integer number (1312251219).

Almost surely, 24957393477 is an apocalyptic number.

It is an amenable number.

4957393477 is a deficient number, since it is larger than the sum of its proper divisors (291611399).

4957393477 is a wasteful number, since it uses less digits than its factorization.

4957393477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291611398.

The product of its digits is 20003760, while the sum is 58.

The square root of 4957393477 is about 70408.7599450523. The cubic root of 4957393477 is about 1705.1050094852.

The spelling of 4957393477 in words is "four billion, nine hundred fifty-seven million, three hundred ninety-three thousand, four hundred seventy-seven".

Divisors: 1 17 291611381 4957393477