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152012531 = 11131105491
BaseRepresentation
bin10010000111110…
…00011011110011
3101121001000222202
421003320123303
5302403400111
623030053415
73524041136
oct1103703363
9347030882
10152012531
11788972a0
1242aaa26b
1325654c58
141629021d
15d52ab3b
hex90f86f3

152012531 has 8 divisors (see below), whose sum is σ = 167099328. Its totient is φ = 137137000.

The previous prime is 152012527. The next prime is 152012557. The reversal of 152012531 is 135210251.

It is a happy number.

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

It is not a de Polignac number, because 152012531 - 22 = 152012527 is a prime.

It is a super-2 number, since 2×1520125312 = 46215619162051922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (152012131) 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, 51305 + ... + 54186.

It is an arithmetic number, because the mean of its divisors is an integer number (20887416).

Almost surely, 2152012531 is an apocalyptic number.

152012531 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

152012531 is a deficient number, since it is larger than the sum of its proper divisors (15086797).

152012531 is a wasteful number, since it uses less digits than its factorization.

152012531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105633.

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 152012531 is about 12329.3361946213. The cubic root of 152012531 is about 533.6949950173.

Adding to 152012531 its reverse (135210251), we get a palindrome (287222782).

The spelling of 152012531 in words is "one hundred fifty-two million, twelve thousand, five hundred thirty-one".

Divisors: 1 11 131 1441 105491 1160401 13819321 152012531