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12408120342 = 2326783912263
BaseRepresentation
bin10111000111001010…
…01110010000010110
31012000202001211012200
423203211032100112
5200402434322332
65411125025330
7616325165652
oct134345162026
935022054180
1012408120342
115298073512
1224a3555246
13122988a257
14859cd7a62
154c94da17c
hex2e394e416

12408120342 has 48 divisors (see below), whose sum is σ = 27320267520. Its totient is φ = 4069120176.

The previous prime is 12408120337. The next prime is 12408120353. The reversal of 12408120342 is 24302180421.

12408120342 is a `hidden beast` number, since 1 + 240 + 81 + 2 + 0 + 342 = 666.

It is a super-3 number, since 3×124081203423 (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1005703 + ... + 1017965.

It is an arithmetic number, because the mean of its divisors is an integer number (569172240).

Almost surely, 212408120342 is an apocalyptic number.

12408120342 is an abundant number, since it is smaller than the sum of its proper divisors (14912147178).

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

12408120342 is a wasteful number, since it uses less digits than its factorization.

12408120342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13177 (or 13174 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

The spelling of 12408120342 in words is "twelve billion, four hundred eight million, one hundred twenty thousand, three hundred forty-two".

Divisors: 1 2 3 6 9 18 67 134 201 402 603 839 1206 1678 2517 5034 7551 12263 15102 24526 36789 56213 73578 110367 112426 168639 220734 337278 505917 821621 1011834 1643242 2464863 4929726 7394589 10288657 14789178 20577314 30865971 61731942 92597913 185195826 689340019 1378680038 2068020057 4136040114 6204060171 12408120342