Search a number
-
+
155141565020 = 225135336730677
BaseRepresentation
bin1001000001111100101…
…0000110101001011100
3112211110002020002010122
42100133022012221130
510020212220040040
6155134314054112
714131360354511
oct2203712065134
9484402202118
10155141565020
115a882407042
122609871a338
1311825845820
14771a583308
15408019b1b5
hex241f286a5c

155141565020 has 96 divisors (see below), whose sum is σ = 358464331008. Its totient is φ = 56047260672.

The previous prime is 155141565011. The next prime is 155141565077. The reversal of 155141565020 is 20565141551.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5041922 + ... + 5072598.

It is an arithmetic number, because the mean of its divisors is an integer number (3734003448).

Almost surely, 2155141565020 is an apocalyptic number.

155141565020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 155141565020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (179232165504).

155141565020 is an abundant number, since it is smaller than the sum of its proper divisors (203322765988).

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

155141565020 is a wasteful number, since it uses less digits than its factorization.

155141565020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31119 (or 31117 counting only the distinct ones).

The product of its (nonzero) digits is 30000, while the sum is 35.

The spelling of 155141565020 in words is "one hundred fifty-five billion, one hundred forty-one million, five hundred sixty-five thousand, twenty".

Divisors: 1 2 4 5 10 13 20 26 52 53 65 106 130 212 260 265 367 530 689 734 1060 1378 1468 1835 2756 3445 3670 4771 6890 7340 9542 13780 19084 19451 23855 30677 38902 47710 61354 77804 95420 97255 122708 153385 194510 252863 306770 389020 398801 505726 613540 797602 1011452 1264315 1595204 1625881 1994005 2528630 3251762 3988010 5057260 6503524 7976020 8129405 11258459 16258810 21136453 22516918 32517620 42272906 45033836 56292295 84545812 105682265 112584590 146359967 211364530 225169180 292719934 422729060 585439868 596698327 731799835 1193396654 1463599670 2386793308 2927199340 2983491635 5966983270 7757078251 11933966540 15514156502 31028313004 38785391255 77570782510 155141565020