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28601161548 = 22319239524869
BaseRepresentation
bin11010101000110000…
…110001011101001100
32201211021010112202120
4122220300301131030
5432033344132143
621050022052540
72031522601431
oct325060613514
981737115676
1028601161548
1111147678aa3
12566257a150
13290a63223b
141554759b88
15b25e13383
hex6a8c3174c

28601161548 has 48 divisors (see below), whose sum is σ = 70542528000. Its totient is φ = 8994138048.

The previous prime is 28601161451. The next prime is 28601161553. The reversal of 28601161548 is 84516110682.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 207943 + ... + 316926.

It is an arithmetic number, because the mean of its divisors is an integer number (1469636000).

Almost surely, 228601161548 is an apocalyptic number.

It is an amenable number.

28601161548 is an abundant number, since it is smaller than the sum of its proper divisors (41941366452).

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

28601161548 is a wasteful number, since it uses less digits than its factorization.

28601161548 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 525134 (or 525132 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 42.

The spelling of 28601161548 in words is "twenty-eight billion, six hundred one million, one hundred sixty-one thousand, five hundred forty-eight".

Divisors: 1 2 3 4 6 12 19 38 57 76 114 228 239 478 717 956 1434 2868 4541 9082 13623 18164 27246 54492 524869 1049738 1574607 2099476 3149214 6298428 9972511 19945022 29917533 39890044 59835066 119670132 125443691 250887382 376331073 501774764 752662146 1505324292 2383430129 4766860258 7150290387 9533720516 14300580774 28601161548