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53033072988 = 223721631912897
BaseRepresentation
bin110001011001000001…
…000111100101011100
312001212222002020120110
4301121001013211130
51332102431313423
640210230450020
73555131453100
oct613101074534
9161788066513
1053033072988
1120544872745
12a340803910
135002263b7c
1427d14a5900
1515a5cbd193
hexc5904795c

53033072988 has 144 divisors (see below), whose sum is σ = 145638549504. Its totient is φ = 14975331840.

The previous prime is 53033072987. The next prime is 53033072999. The reversal of 53033072988 is 88927033035.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53033072987) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 18304756 + ... + 18307652.

It is an arithmetic number, because the mean of its divisors is an integer number (1011378816).

Almost surely, 253033072988 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53033072988, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72819274752).

53033072988 is an abundant number, since it is smaller than the sum of its proper divisors (92605476516).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53033072988 is a wasteful number, since it uses less digits than its factorization.

53033072988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3272 (or 3263 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 48.

The spelling of 53033072988 in words is "fifty-three billion, thirty-three million, seventy-two thousand, nine hundred eighty-eight".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 49 84 98 147 163 191 196 294 326 382 489 573 588 652 764 978 1141 1146 1337 1956 2282 2292 2674 2897 3423 4011 4564 5348 5794 6846 7987 8022 8691 9359 11588 13692 15974 16044 17382 18718 20279 23961 28077 31133 31948 34764 37436 40558 47922 56154 60837 62266 81116 93399 95844 112308 121674 124532 141953 186798 217931 243348 283906 373596 425859 435862 472211 553327 567812 653793 851718 871724 944422 1106654 1307586 1416633 1525517 1659981 1703436 1888844 2213308 2615172 2833266 3051034 3305477 3319962 3873289 4576551 5666532 6102068 6610954 6639924 7746578 9153102 9916431 11619867 13221908 15493156 18306204 19832862 23138339 23239734 27113023 39665724 46276678 46479468 54226046 69415017 81339069 90192301 92553356 108452092 138830034 162678138 180384602 270576903 277660068 325356276 360769204 541153806 631346107 1082307612 1262692214 1894038321 2525384428 3788076642 4419422749 7576153284 8838845498 13258268247 17677690996 26516536494 53033072988