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151443985 = 5711393361
BaseRepresentation
bin10010000011011…
…01101000010001
3101112222011002111
421001231220101
5302232201420
623005545321
73516152440
oct1101555021
9345864074
10151443985
1178539120
1242875241
13254b6234
1416182d57
15d46745a
hex906da11

151443985 has 16 divisors (see below), whose sum is σ = 226576512. Its totient is φ = 94406400.

The previous prime is 151443961. The next prime is 151443989. The reversal of 151443985 is 589344151.

It is not a de Polignac number, because 151443985 - 25 = 151443953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (151443989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 196296 + ... + 197065.

It is an arithmetic number, because the mean of its divisors is an integer number (14161032).

Almost surely, 2151443985 is an apocalyptic number.

It is an amenable number.

151443985 is a deficient number, since it is larger than the sum of its proper divisors (75132527).

151443985 is a wasteful number, since it uses less digits than its factorization.

151443985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 393384.

The product of its digits is 86400, while the sum is 40.

The square root of 151443985 is about 12306.2579608913. The cubic root of 151443985 is about 533.0288016238.

The spelling of 151443985 in words is "one hundred fifty-one million, four hundred forty-three thousand, nine hundred eighty-five".

Divisors: 1 5 7 11 35 55 77 385 393361 1966805 2753527 4326971 13767635 21634855 30288797 151443985