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42142421230 = 25713197930853
BaseRepresentation
bin100111001111111000…
…100101000011101110
311000202222101210220221
4213033320211003232
51142301424434410
631205430201554
73021220445560
oct471770450356
9130688353827
1042142421230
11169663308a8
1282014b32ba
133c87ba4030
14207ad3b330
151169b2d4da
hex9cfe250ee

42142421230 has 128 divisors (see below), whose sum is σ = 99522662400. Its totient is φ = 12475067904.

The previous prime is 42142421221. The next prime is 42142421273. The reversal of 42142421230 is 3212424124.

It is a junction number, because it is equal to n+sod(n) for n = 42142421195 and 42142421204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1350484 + ... + 1381336.

It is an arithmetic number, because the mean of its divisors is an integer number (777520800).

Almost surely, 242142421230 is an apocalyptic number.

42142421230 is an abundant number, since it is smaller than the sum of its proper divisors (57380241170).

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

42142421230 is a wasteful number, since it uses less digits than its factorization.

42142421230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30978.

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 42142421230 its reverse (3212424124), we get a palindrome (45354845354).

The spelling of 42142421230 in words is "forty-two billion, one hundred forty-two million, four hundred twenty-one thousand, two hundred thirty".

Divisors: 1 2 5 7 10 13 14 19 26 35 38 65 70 79 91 95 130 133 158 182 190 247 266 395 455 494 553 665 790 910 1027 1106 1235 1330 1501 1729 2054 2470 2765 3002 3458 5135 5530 7189 7505 8645 10270 10507 14378 15010 17290 19513 21014 30853 35945 39026 52535 61706 71890 97565 105070 136591 154265 195130 215971 273182 308530 401089 431942 586207 682955 802178 1079855 1172414 1365910 2005445 2159710 2437387 2807623 2931035 4010890 4103449 4874774 5615246 5862070 7620691 8206898 12186935 14038115 15241382 17061709 20517245 24373870 28076230 31686031 34123418 38103455 41034490 46310353 53344837 63372062 76206910 85308545 92620706 106689674 158430155 170617090 221802217 231551765 266724185 316860310 324172471 443604434 463103530 533448370 602034589 648344942 1109011085 1204069178 1620862355 2218022170 3010172945 3241724710 4214242123 6020345890 8428484246 21071210615 42142421230