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151225532 = 221371631693
BaseRepresentation
bin10010000001110…
…00010010111100
3101112120001102122
421000320102330
5302203204112
623001142112
73514252523
oct1100702274
9345501378
10151225532
11783a9a87
124278a938
132543a983
14161274ba
15d422872
hex90384bc

151225532 has 24 divisors (see below), whose sum is σ = 268370256. Its totient is φ = 74556288.

The previous prime is 151225531. The next prime is 151225537. The reversal of 151225532 is 235522151.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151225531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88478 + ... + 90170.

It is an arithmetic number, because the mean of its divisors is an integer number (11182094).

Almost surely, 2151225532 is an apocalyptic number.

It is an amenable number.

151225532 is a deficient number, since it is larger than the sum of its proper divisors (117144724).

151225532 is a wasteful number, since it uses less digits than its factorization.

151225532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1997 (or 1995 counting only the distinct ones).

The product of its digits is 3000, while the sum is 26.

The square root of 151225532 is about 12297.3790703548. The cubic root of 151225532 is about 532.7723860840.

Adding to 151225532 its reverse (235522151), we get a palindrome (386747683).

The spelling of 151225532 in words is "one hundred fifty-one million, two hundred twenty-five thousand, five hundred thirty-two".

Divisors: 1 2 4 137 163 274 326 548 652 1693 3386 6772 22331 44662 89324 231941 275959 463882 551918 927764 1103836 37806383 75612766 151225532