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155130511146 = 23138772267791
BaseRepresentation
bin1001000001111001111…
…1111011111100101010
3112211102022102111001220
42100132133323330222
510020201402324041
6155133241122510
714131164405462
oct2203637737452
9484368374056
10155130511146
115a877147106
1226094a89436
1311823475380
147718d06ba2
15407e215d66
hex241e7fbf2a

155130511146 has 32 divisors (see below), whose sum is σ = 334508391168. Its totient is φ = 47678016960.

The previous prime is 155130511141. The next prime is 155130511153. The reversal of 155130511146 is 641115031551.

It is not an unprimeable number, because it can be changed into a prime (155130511141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1065490 + ... + 1202301.

It is an arithmetic number, because the mean of its divisors is an integer number (10453387224).

Almost surely, 2155130511146 is an apocalyptic number.

155130511146 is an abundant number, since it is smaller than the sum of its proper divisors (179377880022).

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

155130511146 is a wasteful number, since it uses less digits than its factorization.

155130511146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2268686.

The product of its (nonzero) digits is 9000, while the sum is 33.

Adding to 155130511146 its reverse (641115031551), we get a palindrome (796245542697).

The spelling of 155130511146 in words is "one hundred fifty-five billion, one hundred thirty million, five hundred eleven thousand, one hundred forty-six".

Divisors: 1 2 3 6 13 26 39 78 877 1754 2631 5262 11401 22802 34203 68406 2267791 4535582 6803373 13606746 29481283 58962566 88443849 176887698 1988852707 3977705414 5966558121 11933116242 25855085191 51710170382 77565255573 155130511146