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13943010420 = 22325317244357
BaseRepresentation
bin11001111110001000…
…10111010001110100
31022222201020022120100
430333010113101310
5212023402313140
610223315034100
71002343430103
oct147704272164
938881208510
1013943010420
115a05514109
12285159b930
131412877231
14963ac003a
15569127530
hex33f117474

13943010420 has 72 divisors (see below), whose sum is σ = 42427390824. Its totient is φ = 3706391808.

The previous prime is 13943010313. The next prime is 13943010511. The reversal of 13943010420 is 2401034931.

It can be written as a sum of positive squares in 4 ways, for example, as 597215844 + 13345794576 = 24438^2 + 115524^2 .

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, 65119 + ... + 179238.

It is an arithmetic number, because the mean of its divisors is an integer number (589269317).

Almost surely, 213943010420 is an apocalyptic number.

13943010420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13943010420 is an abundant number, since it is smaller than the sum of its proper divisors (28484380404).

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

13943010420 is a wasteful number, since it uses less digits than its factorization.

13943010420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244689 (or 244684 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The spelling of 13943010420 in words is "thirteen billion, nine hundred forty-three million, ten thousand, four hundred twenty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 30 36 45 60 90 180 317 634 951 1268 1585 1902 2853 3170 3804 4755 5706 6340 9510 11412 14265 19020 28530 57060 244357 488714 733071 977428 1221785 1466142 2199213 2443570 2932284 3665355 4398426 4887140 7330710 8796852 10996065 14661420 21992130 43984260 77461169 154922338 232383507 309844676 387305845 464767014 697150521 774611690 929534028 1161917535 1394301042 1549223380 2323835070 2788602084 3485752605 4647670140 6971505210 13943010420