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5178744357 = 317826312289
BaseRepresentation
bin1001101001010110…
…10101111000100101
3111100220201110201120
410310223111320211
541101224304412
62213514244153
7242222413023
oct46453257045
914326643646
105178744357
1122182a2316
121006426659
13646bb3097
14371b0d713
152049b2b8c
hex134ad5e25

5178744357 has 16 divisors (see below), whose sum is σ = 7312648320. Its totient is φ = 3248750592.

The previous prime is 5178744343. The next prime is 5178744379. The reversal of 5178744357 is 7534478715.

It is not a de Polignac number, because 5178744357 - 216 = 5178678821 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5177744357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 415269 + ... + 427557.

It is an arithmetic number, because the mean of its divisors is an integer number (457040520).

Almost surely, 25178744357 is an apocalyptic number.

It is an amenable number.

5178744357 is a deficient number, since it is larger than the sum of its proper divisors (2133903963).

5178744357 is a wasteful number, since it uses less digits than its factorization.

5178744357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20572.

The product of its digits is 3292800, while the sum is 51.

The square root of 5178744357 is about 71963.4932239952. The cubic root of 5178744357 is about 1730.1144140085.

The spelling of 5178744357 in words is "five billion, one hundred seventy-eight million, seven hundred forty-four thousand, three hundred fifty-seven".

Divisors: 1 3 17 51 8263 12289 24789 36867 140471 208913 421413 626739 101544007 304632021 1726248119 5178744357