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108807128408 = 23113139885311
BaseRepresentation
bin110010101010101101…
…0010000010101011000
3101101211221210211011202
41211111122100111120
53240314111102113
6121552454213332
710601225221466
oct1452532202530
9341757724152
10108807128408
1142165873020
1219107354248
13a350330224
1453a29cb836
152c6c519258
hex1955690558

108807128408 has 32 divisors (see below), whose sum is σ = 229739397120. Its totient is φ = 47862372000.

The previous prime is 108807128369. The next prime is 108807128413. The reversal of 108807128408 is 804821708801.

It is a super-2 number, since 2×1088071284082 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19939928 + ... + 19945383.

It is an arithmetic number, because the mean of its divisors is an integer number (7179356160).

Almost surely, 2108807128408 is an apocalyptic number.

It is an amenable number.

108807128408 is an abundant number, since it is smaller than the sum of its proper divisors (120932268712).

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

108807128408 is a wasteful number, since it uses less digits than its factorization.

108807128408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39885359 (or 39885355 counting only the distinct ones).

The product of its (nonzero) digits is 229376, while the sum is 47.

The spelling of 108807128408 in words is "one hundred eight billion, eight hundred seven million, one hundred twenty-eight thousand, four hundred eight".

Divisors: 1 2 4 8 11 22 31 44 62 88 124 248 341 682 1364 2728 39885311 79770622 159541244 319082488 438738421 877476842 1236444641 1754953684 2472889282 3509907368 4945778564 9891557128 13600891051 27201782102 54403564204 108807128408