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12430434011212 = 2272294194626779
BaseRepresentation
bin1011010011100010111110…
…0110101000100001001100
31122000100010022121102121201
42310320233212220201030
53112130012101324322
642234243524435244
72422032512520130
oct264705746504114
948010108542551
1012430434011212
113a62798a36288
121489127248b24
136c22532b2289
1430d8c9ac53c0
151685265c3d27
hexb4e2f9a884c

12430434011212 has 48 divisors (see below), whose sum is σ = 25029029088000. Its totient is φ = 5291405406144.

The previous prime is 12430434011123. The next prime is 12430434011239. The reversal of 12430434011212 is 21211043403421.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 373239 + ... + 5000017.

It is an arithmetic number, because the mean of its divisors is an integer number (521438106000).

Almost surely, 212430434011212 is an apocalyptic number.

It is an amenable number.

12430434011212 is an abundant number, since it is smaller than the sum of its proper divisors (12598595076788).

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

12430434011212 is a wasteful number, since it uses less digits than its factorization.

12430434011212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4627438 (or 4627436 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

Adding to 12430434011212 its reverse (21211043403421), we get a palindrome (33641477414633).

The spelling of 12430434011212 in words is "twelve trillion, four hundred thirty billion, four hundred thirty-four million, eleven thousand, two hundred twelve".

Divisors: 1 2 4 7 14 28 229 419 458 838 916 1603 1676 2933 3206 5866 6412 11732 95951 191902 383804 671657 1343314 2686628 4626779 9253558 18507116 32387453 64774906 129549812 1059532391 1938620401 2119064782 3877240802 4238129564 7416726737 7754481604 13570342807 14833453474 27140685614 29666906948 54281371228 443944071829 887888143658 1775776287316 3107608502803 6215217005606 12430434011212