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1275376067420 = 2257131936881899
BaseRepresentation
bin10010100011110010010…
…101100110001101011100
311111220222011002001221012
4102203302111212031130
5131343432233124140
62413522155154352
7161100002463440
oct22436225461534
94456864061835
101275376067420
1145197a5a5194
12187214a459b8
1393362773130
1445a2b136820
152329728a265
hex128f256635c

1275376067420 has 96 divisors (see below), whose sum is σ = 3469849152000. Its totient is φ = 382391518464.

The previous prime is 1275376067369. The next prime is 1275376067429. The reversal of 1275376067420 is 247606735721.

It is a super-2 number, since 2×12753760674202 (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1275376067429) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18406370 + ... + 18475529.

It is an arithmetic number, because the mean of its divisors is an integer number (36144262000).

Almost surely, 21275376067420 is an apocalyptic number.

1275376067420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1275376067420 is an abundant number, since it is smaller than the sum of its proper divisors (2194473084580).

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

1275376067420 is a wasteful number, since it uses less digits than its factorization.

1275376067420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36881947 (or 36881945 counting only the distinct ones).

The product of its (nonzero) digits is 2963520, while the sum is 50.

The spelling of 1275376067420 in words is "one trillion, two hundred seventy-five billion, three hundred seventy-six million, sixty-seven thousand, four hundred twenty".

Divisors: 1 2 4 5 7 10 13 14 19 20 26 28 35 38 52 65 70 76 91 95 130 133 140 182 190 247 260 266 364 380 455 494 532 665 910 988 1235 1330 1729 1820 2470 2660 3458 4940 6916 8645 17290 34580 36881899 73763798 147527596 184409495 258173293 368818990 479464687 516346586 700756081 737637980 958929374 1032693172 1290866465 1401512162 1917858748 2397323435 2581732930 2803024324 3356252809 3503780405 4794646870 4905292567 5163465860 6712505618 7007560810 9109829053 9589293740 9810585134 13425011236 14015121620 16781264045 18219658106 19621170268 24526462835 33562528090 36439316212 45549145265 49052925670 63768803371 67125056180 91098290530 98105851340 127537606742 182196581060 255075213484 318844016855 637688033710 1275376067420