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152020165 = 511353431
BaseRepresentation
bin10010000111110…
…10010011000101
3101121001102110111
421003322103011
5302404121130
623030153021
73524102323
oct1103722305
9347042414
10152020165
11788a2000
1242ab2771
132565857b
1416292d13
15d52d02a
hex90fa4c5

152020165 has 32 divisors (see below), whose sum is σ = 204913152. Its totient is φ = 108222400.

The previous prime is 152020163. The next prime is 152020177. The reversal of 152020165 is 561020251.

It is not a de Polignac number, because 152020165 - 21 = 152020163 is a prime.

It is a super-2 number, since 2×1520201652 = 46220261133254450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (152020163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 352500 + ... + 352930.

It is an arithmetic number, because the mean of its divisors is an integer number (6403536).

Almost surely, 2152020165 is an apocalyptic number.

It is an amenable number.

152020165 is a deficient number, since it is larger than the sum of its proper divisors (52892987).

152020165 is an equidigital number, since it uses as much as digits as its factorization.

152020165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 522 (or 500 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 152020165 is about 12329.6457775558. The cubic root of 152020165 is about 533.7039288409.

The spelling of 152020165 in words is "one hundred fifty-two million, twenty thousand, one hundred sixty-five".

Divisors: 1 5 11 53 55 121 265 431 583 605 1331 2155 2915 4741 6413 6655 22843 23705 32065 52151 70543 114215 251273 260755 352715 573661 1256365 2764003 2868305 13820015 30404033 152020165