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152343985 = 537823481
BaseRepresentation
bin10010001010010…
…01010110110001
3101121122212122211
421011021112301
5303000001420
623041132121
73526621363
oct1105112661
9347585584
10152343985
1178aa3322
124302a041
132573ca91
1416338d33
15d593e5a
hex91495b1

152343985 has 8 divisors (see below), whose sum is σ = 187753896. Its totient is φ = 118581120.

The previous prime is 152343949. The next prime is 152343991. The reversal of 152343985 is 589343251.

It can be written as a sum of positive squares in 4 ways, for example, as 65351056 + 86992929 = 8084^2 + 9327^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 152343985 - 29 = 152343473 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 411556 + ... + 411925.

It is an arithmetic number, because the mean of its divisors is an integer number (23469237).

Almost surely, 2152343985 is an apocalyptic number.

It is an amenable number.

152343985 is a deficient number, since it is larger than the sum of its proper divisors (35409911).

152343985 is an equidigital number, since it uses as much as digits as its factorization.

152343985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 823523.

The product of its digits is 129600, while the sum is 40.

The square root of 152343985 is about 12342.7705560786. The cubic root of 152343985 is about 534.0826098308.

The spelling of 152343985 in words is "one hundred fifty-two million, three hundred forty-three thousand, nine hundred eighty-five".

Divisors: 1 5 37 185 823481 4117405 30468797 152343985