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151482231 = 341998429
BaseRepresentation
bin10010000011101…
…10111101110111
3101120001002120000
421001312331313
5302234412411
623010442343
73516402105
oct1101667567
9346032500
10151482231
117856492a
12428933b3
13254ca774
1416192c75
15d473956
hex9076f77

151482231 has 20 divisors (see below), whose sum is σ = 238200600. Its totient is φ = 95672016.

The previous prime is 151482229. The next prime is 151482271. The reversal of 151482231 is 132284151.

151482231 is a `hidden beast` number, since 151 + 482 + 2 + 31 = 666.

It is not a de Polignac number, because 151482231 - 21 = 151482229 is a prime.

It is a super-2 number, since 2×1514822312 = 45893732617474722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 151482195 and 151482204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151482211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 47676 + ... + 50753.

It is an arithmetic number, because the mean of its divisors is an integer number (11910030).

Almost surely, 2151482231 is an apocalyptic number.

151482231 is a deficient number, since it is larger than the sum of its proper divisors (86718369).

151482231 is an equidigital number, since it uses as much as digits as its factorization.

151482231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98460 (or 98451 counting only the distinct ones).

The product of its digits is 1920, while the sum is 27.

The square root of 151482231 is about 12307.8117876412. The cubic root of 151482231 is about 533.0736686059.

Adding to 151482231 its product of digits (1920), we get a palindrome (151484151).

The spelling of 151482231 in words is "one hundred fifty-one million, four hundred eighty-two thousand, two hundred thirty-one".

Divisors: 1 3 9 19 27 57 81 171 513 1539 98429 295287 885861 1870151 2657583 5610453 7972749 16831359 50494077 151482231