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12215426703430 = 2517312175801923
BaseRepresentation
bin1011000111000010000000…
…1010110110000001000110
31121020210011002102112001011
42301300200022312001012
53100114143214002210
641551404535552434
72400351442536166
oct261604012660106
947223132375034
1012215426703430
11398a595a11685
12145352182b71a
136a7ba9a88a32
1430333083a5a6
15162b40894d8a
hexb1c202b6046

12215426703430 has 32 divisors (see below), whose sum is σ = 22133040429024. Its totient is φ = 4853934360576.

The previous prime is 12215426703401. The next prime is 12215426703437. The reversal of 12215426703430 is 3430762451221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12215426703437) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 795552 + ... + 5006371.

It is an arithmetic number, because the mean of its divisors is an integer number (691657513407).

Almost surely, 212215426703430 is an apocalyptic number.

12215426703430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12215426703430 is a deficient number, since it is larger than the sum of its proper divisors (9917613725594).

12215426703430 is a wasteful number, since it uses less digits than its factorization.

12215426703430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5803320.

The product of its (nonzero) digits is 241920, while the sum is 40.

The spelling of 12215426703430 in words is "twelve trillion, two hundred fifteen billion, four hundred twenty-six million, seven hundred three thousand, four hundred thirty".

Divisors: 1 2 5 10 173 346 865 1217 1730 2434 6085 12170 210541 421082 1052705 2105410 5801923 11603846 29009615 58019230 1003732679 2007465358 5018663395 7060940291 10037326790 14121880582 35304701455 70609402910 1221542670343 2443085340686 6107713351715 12215426703430