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61141543351 = 72431031072633
BaseRepresentation
bin111000111100010100…
…011110100110110111
312211211001121012211121
4320330110132212313
52000204213341401
644031003244411
74263100354300
oct707424364667
9184731535747
1061141543351
1123a25897519
12ba24219707
1359c50c5025
142d603277a7
1518cca92ca1
hexe3c51e9b7

61141543351 has 48 divisors (see below), whose sum is σ = 74199400704. Its totient is φ = 50198472576.

The previous prime is 61141543301. The next prime is 61141543361. The reversal of 61141543351 is 15334514116.

It is not a de Polignac number, because 61141543351 - 211 = 61141541303 is a prime.

It is a super-3 number, since 3×611415433513 (a number of 33 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61141543301) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 23219931 + ... + 23222563.

It is an arithmetic number, because the mean of its divisors is an integer number (1545820848).

Almost surely, 261141543351 is an apocalyptic number.

61141543351 is a deficient number, since it is larger than the sum of its proper divisors (13057857353).

61141543351 is a wasteful number, since it uses less digits than its factorization.

61141543351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2900 (or 2893 counting only the distinct ones).

The product of its digits is 21600, while the sum is 34.

The spelling of 61141543351 in words is "sixty-one billion, one hundred forty-one million, five hundred forty-three thousand, three hundred fifty-one".

Divisors: 1 7 43 49 103 107 301 721 749 2107 2633 4429 4601 5047 5243 11021 18431 31003 32207 77147 113219 129017 217021 225449 271199 281731 473903 540029 792533 1898393 1972117 3317321 5547731 11661557 12114433 13288751 13804819 23221247 29018293 81630899 84801031 203128051 571416293 593607217 1247786599 1421896357 8734506193 61141543351