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12402430144 = 261343346669
BaseRepresentation
bin10111000110011111…
…00001000011000000
31012000100100201201121
423203033201003000
5200400010231034
65410403042024
7616225626316
oct134317410300
935010321647
1012402430144
115294937375
1224a1670314
131228647280
148592560b6
154c8c641b4
hex2e33e10c0

12402430144 has 56 divisors (see below), whose sum is σ = 27120687440. Its totient is φ = 5591061504.

The previous prime is 12402430069. The next prime is 12402430151. The reversal of 12402430144 is 44103420421.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 137559 + ... + 209110.

It is an arithmetic number, because the mean of its divisors is an integer number (484297990).

Almost surely, 212402430144 is an apocalyptic number.

It is an amenable number.

12402430144 is an abundant number, since it is smaller than the sum of its proper divisors (14718257296).

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

12402430144 is a wasteful number, since it uses less digits than its factorization.

12402430144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346737 (or 346727 counting only the distinct ones).

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

Adding to 12402430144 its reverse (44103420421), we get a palindrome (56505850565).

The spelling of 12402430144 in words is "twelve billion, four hundred two million, four hundred thirty thousand, one hundred forty-four".

Divisors: 1 2 4 8 13 16 26 32 43 52 64 86 104 172 208 344 416 559 688 832 1118 1376 2236 2752 4472 8944 17888 35776 346669 693338 1386676 2773352 4506697 5546704 9013394 11093408 14906767 18026788 22186816 29813534 36053576 59627068 72107152 119254136 144214304 193787971 238508272 288428608 387575942 477016544 775151884 954033088 1550303768 3100607536 6201215072 12402430144