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208650248072 = 2372230712
BaseRepresentation
bin1100001001010010000…
…1100001111110001000
3201221120012020211001122
43002110201201332020
511404303430414242
6235504054534412
721034355563100
oct3022441417610
9657505224048
10208650248072
1180540697652
1234530667408
13168a24a2166
14a154c92200
155662ab5ad2
hex3094861f88

208650248072 has 36 divisors (see below), whose sum is σ = 455111466615. Its totient is φ = 89417658960.

The previous prime is 208650248071. The next prime is 208650248077. The reversal of 208650248072 is 270842056802.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in only one way, i.e., 104325124036 + 104325124036 = 322994^2 + 322994^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=322994.

It is a super-4 number, since 4×2086502480724 (a number of 46 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (208650248071) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 9032297 + ... + 9055367.

Almost surely, 2208650248072 is an apocalyptic number.

It is an amenable number.

208650248072 is an abundant number, since it is smaller than the sum of its proper divisors (246461218543).

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

208650248072 is an frugal number, since it uses more digits than its factorization.

208650248072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46162 (or 23080 counting only the distinct ones).

The product of its (nonzero) digits is 430080, while the sum is 44.

The spelling of 208650248072 in words is "two hundred eight billion, six hundred fifty million, two hundred forty-eight thousand, seventy-two".

Divisors: 1 2 4 7 8 14 28 49 56 98 196 392 23071 46142 92284 161497 184568 322994 645988 1130479 1291976 2260958 4521916 9043832 532271041 1064542082 2129084164 3725897287 4258168328 7451794574 14903589148 26081281009 29807178296 52162562018 104325124036 208650248072