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2146430055 = 357211265483
BaseRepresentation
bin111111111101111…
…1110110001100111
312112120212221111110
41333323332301213
513343441230210
6552553240103
7104122232400
oct17773766147
95476787443
102146430055
11a01670740
124baa03033
132828c6373
141650d49a7
15c8689420
hex7fefec67

2146430055 has 48 divisors (see below), whose sum is σ = 4358185344. Its totient is φ = 892019520.

The previous prime is 2146430017. The next prime is 2146430107. The reversal of 2146430055 is 5500346412.

It is not a de Polignac number, because 2146430055 - 27 = 2146429927 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 124657 + ... + 140826.

It is an arithmetic number, because the mean of its divisors is an integer number (90795528).

Almost surely, 22146430055 is an apocalyptic number.

2146430055 is an abundant number, since it is smaller than the sum of its proper divisors (2211755289).

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

2146430055 is a wasteful number, since it uses less digits than its factorization.

2146430055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265516 (or 265509 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 2146430055 is about 46329.5807772961. The cubic root of 2146430055 is about 1289.9481290362.

Adding to 2146430055 its reverse (5500346412), we get a palindrome (7646776467).

The spelling of 2146430055 in words is "two billion, one hundred forty-six million, four hundred thirty thousand, fifty-five".

Divisors: 1 3 5 7 11 15 21 33 35 49 55 77 105 147 165 231 245 385 539 735 1155 1617 2695 8085 265483 796449 1327415 1858381 2920313 3982245 5575143 8760939 9291905 13008667 14601565 20442191 27875715 39026001 43804695 61326573 65043335 102210955 143095337 195130005 306632865 429286011 715476685 2146430055