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15485031970 = 255923261439
BaseRepresentation
bin11100110101111101…
…01101011000100010
31110222011211010110121
432122332231120202
5223203132010340
611040321550454
71055506412542
oct163276553042
943864733417
1015485031970
116626995791
123001aa542a
1315ca190215
14a6c801322
156096c294a
hex39afad622

15485031970 has 16 divisors (see below), whose sum is σ = 27877870080. Its totient is φ = 6192943344.

The previous prime is 15485031941. The next prime is 15485031979. The reversal of 15485031970 is 7913058451.

It is a super-2 number, since 2×154850319702 (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (15485031979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71490 + ... + 189949.

It is an arithmetic number, because the mean of its divisors is an integer number (1742366880).

Almost surely, 215485031970 is an apocalyptic number.

15485031970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

15485031970 is a deficient number, since it is larger than the sum of its proper divisors (12392838110).

15485031970 is a wasteful number, since it uses less digits than its factorization.

15485031970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267369.

The product of its (nonzero) digits is 151200, while the sum is 43.

The spelling of 15485031970 in words is "fifteen billion, four hundred eighty-five million, thirty-one thousand, nine hundred seventy".

Divisors: 1 2 5 10 5923 11846 29615 59230 261439 522878 1307195 2614390 1548503197 3097006394 7742515985 15485031970