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100230520072 = 2312528815009
BaseRepresentation
bin101110101011000110…
…1000101110100001000
3100120201020101222100011
41131112031011310020
53120233003120242
6114013435521304
710145543235454
oct1352615056410
9316636358304
10100230520072
1139564574261
1217512bb9234
1395b44c1657
144bcb909664
1529195c1d17
hex1756345d08

100230520072 has 8 divisors (see below), whose sum is σ = 187932225150. Its totient is φ = 50115260032.

The previous prime is 100230520069. The next prime is 100230520121. The reversal of 100230520072 is 270025032001.

It can be written as a sum of positive squares in only one way, i.e., 98976935236 + 1253584836 = 314606^2 + 35406^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6264407497 + ... + 6264407512.

Almost surely, 2100230520072 is an apocalyptic number.

It is an amenable number.

100230520072 is a deficient number, since it is larger than the sum of its proper divisors (87701705078).

100230520072 is a wasteful number, since it uses less digits than its factorization.

100230520072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12528815015 (or 12528815011 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 22.

Adding to 100230520072 its reverse (270025032001), we get a palindrome (370255552073).

The spelling of 100230520072 in words is "one hundred billion, two hundred thirty million, five hundred twenty thousand, seventy-two".

Divisors: 1 2 4 8 12528815009 25057630018 50115260036 100230520072