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42111411212 = 221321729126359
BaseRepresentation
bin100111001110000010…
…010010010000001100
311000200211001100011202
4213032002102100030
51142221010124322
631202401405032
73020363042423
oct471602222014
9130624040152
1042111411212
111694a880592
1281b3039778
133c81637400
142076b882ba
151167055292
hex9ce09240c

42111411212 has 72 divisors (see below), whose sum is σ = 87408266400. Its totient is φ = 17661815808.

The previous prime is 42111411187. The next prime is 42111411239. The reversal of 42111411212 is 21211411124.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 270089 + ... + 396447.

It is an arithmetic number, because the mean of its divisors is an integer number (1214003700).

Almost surely, 242111411212 is an apocalyptic number.

It is an amenable number.

42111411212 is an abundant number, since it is smaller than the sum of its proper divisors (45296855188).

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

42111411212 is a wasteful number, since it uses less digits than its factorization.

42111411212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126435 (or 126420 counting only the distinct ones).

The product of its digits is 128, while the sum is 20.

Adding to 42111411212 its reverse (21211411124), we get a palindrome (63322822336).

The spelling of 42111411212 in words is "forty-two billion, one hundred eleven million, four hundred eleven thousand, two hundred twelve".

Divisors: 1 2 4 13 17 26 29 34 52 58 68 116 169 221 338 377 442 493 676 754 884 986 1508 1972 2873 4901 5746 6409 9802 11492 12818 19604 25636 83317 126359 166634 252718 333268 505436 1642667 2148103 3285334 3664411 4296206 6570668 7328822 8592412 14657644 21354671 27925339 42709342 47637343 55850678 62294987 85418684 95274686 111701356 124589974 190549372 249179948 363029407 619285459 726058814 809834831 1238570918 1452117628 1619669662 2477141836 3239339324 10527852803 21055705606 42111411212