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152728065 = 3357295573
BaseRepresentation
bin10010001101001…
…11001000000001
3101122101101112000
421012213020001
5303044244230
623053254213
73533111220
oct1106471001
9348341460
10152728065
1179235946
1243194369
1325845849
14163d8cb7
15d61cb60
hex91a7201

152728065 has 64 divisors (see below), whose sum is σ = 321062400. Its totient is φ = 67398912.

The previous prime is 152728039. The next prime is 152728067. The reversal of 152728065 is 560827251.

It is a happy number.

It is not a de Polignac number, because 152728065 - 26 = 152728001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (152728067) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 24619 + ... + 30191.

It is an arithmetic number, because the mean of its divisors is an integer number (5016600).

Almost surely, 2152728065 is an apocalyptic number.

152728065 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

152728065 is an abundant number, since it is smaller than the sum of its proper divisors (168334335).

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

152728065 is a wasteful number, since it uses less digits than its factorization.

152728065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5623 (or 5617 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 36.

The square root of 152728065 is about 12358.3196673334. The cubic root of 152728065 is about 534.5310649121.

It can be divided in two parts, 1527 and 28065, that added together give a palindrome (29592).

The spelling of 152728065 in words is "one hundred fifty-two million, seven hundred twenty-eight thousand, sixty-five".

Divisors: 1 3 5 7 9 15 21 27 29 35 45 63 87 105 135 145 189 203 261 315 435 609 783 945 1015 1305 1827 3045 3915 5481 5573 9135 16719 27405 27865 39011 50157 83595 117033 150471 161617 195055 250785 351099 484851 585165 752355 808085 1053297 1131319 1454553 1755495 2424255 3393957 4363659 5266485 5656595 7272765 10181871 16969785 21818295 30545613 50909355 152728065