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285148920284 = 2271287230071
BaseRepresentation
bin1000010011001000011…
…00110011100111011100
31000021000112000000021122
410021210030303213130
514132441110422114
6334555014550112
726413153555004
oct4114414634734
91007015000248
10285148920284
11aaa2714a2a8
124731b968338
1320b740c4187
14db30a05004
15763d9b3e8e
hex42643339dc

285148920284 has 6 divisors (see below), whose sum is σ = 499010610504. Its totient is φ = 142574460140.

The previous prime is 285148920269. The next prime is 285148920299. The reversal of 285148920284 is 482029841582.

It is an interprime number because it is at equal distance from previous prime (285148920269) and next prime (285148920299).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35643615032 + ... + 35643615039.

It is an arithmetic number, because the mean of its divisors is an integer number (83168435084).

Almost surely, 2285148920284 is an apocalyptic number.

It is an amenable number.

285148920284 is a deficient number, since it is larger than the sum of its proper divisors (213861690220).

285148920284 is a wasteful number, since it uses less digits than its factorization.

285148920284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71287230075 (or 71287230073 counting only the distinct ones).

The product of its (nonzero) digits is 2949120, while the sum is 53.

The spelling of 285148920284 in words is "two hundred eighty-five billion, one hundred forty-eight million, nine hundred twenty thousand, two hundred eighty-four".

Divisors: 1 2 4 71287230071 142574460142 285148920284