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106388806888 = 23713146138471
BaseRepresentation
bin110001100010101000…
…1000101110011101000
3101011121102022100201001
41203011101011303220
53220341013310023
6120512505204344
710454261636440
oct1430521056350
9334542270631
10106388806888
11411347872a1
12187514906b4
13a0562cb150
14521375d120
152b7a0746ad
hex18c5445ce8

106388806888 has 32 divisors (see below), whose sum is σ = 245512632960. Its totient is φ = 42087879360.

The previous prime is 106388806871. The next prime is 106388806889. The reversal of 106388806888 is 888608883601.

It is a super-2 number, since 2×1063888068882 (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (106388806889) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73068508 + ... + 73069963.

It is an arithmetic number, because the mean of its divisors is an integer number (7672269780).

Almost surely, 2106388806888 is an apocalyptic number.

It is an amenable number.

106388806888 is an abundant number, since it is smaller than the sum of its proper divisors (139123826072).

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

106388806888 is a wasteful number, since it uses less digits than its factorization.

106388806888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146138497 (or 146138493 counting only the distinct ones).

The product of its (nonzero) digits is 28311552, while the sum is 64.

It can be divided in two parts, 106388 and 806888, that added together give a triangular number (913276 = T1351).

The spelling of 106388806888 in words is "one hundred six billion, three hundred eighty-eight million, eight hundred six thousand, eight hundred eighty-eight".

Divisors: 1 2 4 7 8 13 14 26 28 52 56 91 104 182 364 728 146138471 292276942 584553884 1022969297 1169107768 1899800123 2045938594 3799600246 4091877188 7599200492 8183754376 13298600861 15198400984 26597201722 53194403444 106388806888