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53440131415 = 51183109211509
BaseRepresentation
bin110001110001010001…
…111011000101010111
312002221100000221202111
4301301101323011113
51333421133201130
640314451251451
73601203423256
oct616121730527
9162840027674
1053440131415
1120733619770
12a434ba9b87
1350686a7148
14282d58679d
1515cb8c802a
hexc7147b157

53440131415 has 64 divisors (see below), whose sum is σ = 71930073600. Its totient is φ = 37790323200.

The previous prime is 53440131343. The next prime is 53440131419. The reversal of 53440131415 is 51413104435.

It is not a de Polignac number, because 53440131415 - 223 = 53431742807 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53440131419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 104990181 + ... + 104990689.

It is an arithmetic number, because the mean of its divisors is an integer number (1123907400).

Almost surely, 253440131415 is an apocalyptic number.

53440131415 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

53440131415 is a deficient number, since it is larger than the sum of its proper divisors (18489942185).

53440131415 is a wasteful number, since it uses less digits than its factorization.

53440131415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 928.

The product of its (nonzero) digits is 14400, while the sum is 31.

The spelling of 53440131415 in words is "fifty-three billion, four hundred forty million, one hundred thirty-one thousand, four hundred fifteen".

Divisors: 1 5 11 55 83 109 211 415 509 545 913 1055 1199 2321 2545 4565 5599 5995 9047 11605 17513 22999 27995 42247 45235 55481 87565 99517 107399 114995 192643 211235 252989 277405 464717 497585 536995 610291 963215 1181389 1264945 1908917 2323585 3051455 4604923 5906945 8914117 9544585 11706491 20998087 23024615 44570585 50654153 58532455 98055287 104990435 128771401 253270765 490276435 643857005 971638753 4858193765 10688026283 53440131415