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153987342 = 2325664557
BaseRepresentation
bin10010010110110…
…10100100001110
3101201202100220220
421023122210032
5303410043332
623140252210
73546604455
oct1113324416
9351670826
10153987342
1179a15a73
12436a1066
1325b96a92
1416645b9c
15d7bad2c
hex92da90e

153987342 has 8 divisors (see below), whose sum is σ = 307974696. Its totient is φ = 51329112.

The previous prime is 153987341. The next prime is 153987359. The reversal of 153987342 is 243789351.

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

153987342 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 153987294 and 153987303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (153987341) 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 3 ways as a sum of consecutive naturals, for example, 12832273 + ... + 12832284.

It is an arithmetic number, because the mean of its divisors is an integer number (38496837).

Almost surely, 2153987342 is an apocalyptic number.

153987342 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

153987342 is a wasteful number, since it uses less digits than its factorization.

153987342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25664562.

The product of its digits is 181440, while the sum is 42.

The square root of 153987342 is about 12409.1636301565. The cubic root of 153987342 is about 535.9961549253.

The spelling of 153987342 in words is "one hundred fifty-three million, nine hundred eighty-seven thousand, three hundred forty-two".

Divisors: 1 2 3 6 25664557 51329114 76993671 153987342