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152646145 = 5171795837
BaseRepresentation
bin10010001100100…
…11001000000001
3101122020020010221
421012103020001
5303034134040
623051423041
73532320331
oct1106231001
9348206127
10152646145
117918a343
1243154a81
1325817482
14163b70c1
15d60374a
hex9193201

152646145 has 8 divisors (see below), whose sum is σ = 193950504. Its totient is φ = 114933504.

The previous prime is 152646121. The next prime is 152646149. The reversal of 152646145 is 541646251.

It can be written as a sum of positive squares in 4 ways, for example, as 81884401 + 70761744 = 9049^2 + 8412^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 152646145 - 27 = 152646017 is a prime.

It is a super-2 number, since 2×1526461452 = 46601691166722050, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 152646145.

It is not an unprimeable number, because it can be changed into a prime (152646149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 897834 + ... + 898003.

It is an arithmetic number, because the mean of its divisors is an integer number (24243813).

Almost surely, 2152646145 is an apocalyptic number.

It is an amenable number.

152646145 is a deficient number, since it is larger than the sum of its proper divisors (41304359).

152646145 is a wasteful number, since it uses less digits than its factorization.

152646145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1795859.

The product of its digits is 28800, while the sum is 34.

The square root of 152646145 is about 12355.0048563325. The cubic root of 152646145 is about 534.4354775550.

The spelling of 152646145 in words is "one hundred fifty-two million, six hundred forty-six thousand, one hundred forty-five".

Divisors: 1 5 17 85 1795837 8979185 30529229 152646145