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213020104401 = 321331213713829
BaseRepresentation
bin1100011001100011111…
…1001101011011010001
3202100211201220112000100
43012120333031123101
511442231121320101
6241505440043013
721250560004026
oct3063077153321
9670751815010
10213020104401
1182383328365
1235350003469
131711a90c970
14a44b3a154d
15581b547e86
hex3198fcd6d1

213020104401 has 72 divisors (see below), whose sum is σ = 344922800040. Its totient is φ = 125925511680.

The previous prime is 213020104397. The next prime is 213020104457. The reversal of 213020104401 is 104401020312.

213020104401 is a `hidden beast` number, since 21 + 3 + 0 + 201 + 0 + 440 + 1 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 498182400 + 212521922001 = 22320^2 + 461001^2 .

It is not a de Polignac number, because 213020104401 - 22 = 213020104397 is a prime.

It is not an unprimeable number, because it can be changed into a prime (213020104201) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 15396955 + ... + 15410783.

It is an arithmetic number, because the mean of its divisors is an integer number (4790594445).

Almost surely, 2213020104401 is an apocalyptic number.

It is an amenable number.

213020104401 is a deficient number, since it is larger than the sum of its proper divisors (131902695639).

213020104401 is a wasteful number, since it uses less digits than its factorization.

213020104401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14047 (or 14013 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 213020104401 its reverse (104401020312), we get a palindrome (317421124713).

The spelling of 213020104401 in words is "two hundred thirteen billion, twenty million, one hundred four thousand, four hundred one".

Divisors: 1 3 9 13 31 39 93 117 137 279 403 411 961 1209 1233 1781 2883 3627 4247 5343 8649 12493 12741 13829 16029 37479 38223 41487 55211 112437 124461 131657 165633 179777 394971 428699 496899 539331 1184913 1286097 1617993 1711541 1894573 3858291 5134623 5573087 5683719 13289669 15403869 16719261 17051157 24629449 39869007 50157783 58731763 73888347 119607021 172765697 176195289 221665041 518297091 528585867 763512919 1554891273 1820684653 2290538757 5462053959 6871616271 16386161877 23668900489 71006701467 213020104401