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42542155352 = 23193122271283
BaseRepresentation
bin100111100111101101…
…011100011001011000
311001210211120102001102
4213213231130121120
51144111242432402
631313230010532
73034143232304
oct474755343130
9131724512042
1042542155352
1117050a34a84
1282b3346a48
13401c9515b8
1420b8072d04
15118ec8d102
hex9e7b5c658

42542155352 has 96 divisors (see below), whose sum is σ = 87210820800. Its totient is φ = 19400454720.

The previous prime is 42542155351. The next prime is 42542155361. The reversal of 42542155352 is 25355124524.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42542155351) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 33157703 + ... + 33158985.

It is an arithmetic number, because the mean of its divisors is an integer number (908446050).

Almost surely, 242542155352 is an apocalyptic number.

It is an amenable number.

42542155352 is an abundant number, since it is smaller than the sum of its proper divisors (44668665448).

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

42542155352 is a wasteful number, since it uses less digits than its factorization.

42542155352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1597 (or 1562 counting only the distinct ones).

The product of its digits is 240000, while the sum is 38.

Adding to 42542155352 its reverse (25355124524), we get a palindrome (67897279876).

The spelling of 42542155352 in words is "forty-two billion, five hundred forty-two million, one hundred fifty-five thousand, three hundred fifty-two".

Divisors: 1 2 4 8 19 31 38 62 76 124 152 227 248 454 589 908 961 1178 1283 1816 1922 2356 2566 3844 4313 4712 5132 7037 7688 8626 10264 14074 17252 18259 24377 28148 34504 36518 39773 48754 56296 73036 79546 97508 133703 146072 159092 195016 218147 267406 291241 318184 436294 534812 582482 755687 872588 1069624 1164964 1232963 1511374 1745176 2329928 2465926 3022748 4144793 4931852 5533579 6045496 8289586 9028471 9863704 11067158 16579172 18056942 22134316 23426297 33158344 36113884 44268632 46852594 72227768 93705188 171540949 187410376 279882601 343081898 559765202 686163796 1119530404 1372327592 2239060808 5317769419 10635538838 21271077676 42542155352