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153241985 = 51323102503
BaseRepresentation
bin10010010001001…
…00100110000001
3101200100111111002
421020210212001
5303212220420
623112301345
73540351431
oct1110444601
9350314432
10153241985
1179556a76
12433a1855
1325995740
14164d02c1
15d6c0075
hex9224981

153241985 has 16 divisors (see below), whose sum is σ = 206648064. Its totient is φ = 108242112.

The previous prime is 153241967. The next prime is 153241993. The reversal of 153241985 is 589142351.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 153241985 - 28 = 153241729 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49757 + ... + 52746.

It is an arithmetic number, because the mean of its divisors is an integer number (12915504).

Almost surely, 2153241985 is an apocalyptic number.

It is an amenable number.

153241985 is a deficient number, since it is larger than the sum of its proper divisors (53406079).

153241985 is a wasteful number, since it uses less digits than its factorization.

153241985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102544.

The product of its digits is 43200, while the sum is 38.

The square root of 153241985 is about 12379.0946761062. The cubic root of 153241985 is about 535.1299477627.

The spelling of 153241985 in words is "one hundred fifty-three million, two hundred forty-one thousand, nine hundred eighty-five".

Divisors: 1 5 13 23 65 115 299 1495 102503 512515 1332539 2357569 6662695 11787845 30648397 153241985