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551013308142 = 231123675417707
BaseRepresentation
bin10000000010010101111…
…00111101011011101110
31221200021001202021022120
420001022330331123232
533011433401330032
61101044303253410
754544423561263
oct10011274753356
91850231667276
10551013308142
111a27577139a0
128a9592aa266
133cc63b071cb
141c95236726a
15e4ee43762c
hex804af3d6ee

551013308142 has 64 divisors (see below), whose sum is σ = 1273204721664. Its totient is φ = 157330182240.

The previous prime is 551013308137. The next prime is 551013308143. The reversal of 551013308142 is 241803310155.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551013308143) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2607148 + ... + 2810559.

It is an arithmetic number, because the mean of its divisors is an integer number (19893823776).

Almost surely, 2551013308142 is an apocalyptic number.

551013308142 is an abundant number, since it is smaller than the sum of its proper divisors (722191413522).

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

551013308142 is a wasteful number, since it uses less digits than its factorization.

551013308142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5417813.

The product of its (nonzero) digits is 14400, while the sum is 33.

Adding to 551013308142 its reverse (241803310155), we get a palindrome (792816618297).

The spelling of 551013308142 in words is "five hundred fifty-one billion, thirteen million, three hundred eight thousand, one hundred forty-two".

Divisors: 1 2 3 6 11 22 23 33 46 66 67 69 134 138 201 253 402 506 737 759 1474 1518 1541 2211 3082 4422 4623 9246 16951 33902 50853 101706 5417707 10835414 16253121 32506242 59594777 119189554 124607261 178784331 249214522 357568662 362986369 373821783 725972738 747643566 1088959107 1370679871 2177918214 2741359742 3992850059 4112039613 7985700118 8224079226 8348686487 11978550177 16697372974 23957100354 25046059461 50092118922 91835551357 183671102714 275506654071 551013308142