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147550 = 25213227
BaseRepresentation
bin100100000001011110
321111101211
4210001132
514210200
63055034
71153114
oct440136
9244354
10147550
11a0947
127147a
1352210
143bab4
152daba
hex2405e

147550 has 24 divisors (see below), whose sum is σ = 296856. Its totient is φ = 54240.

The previous prime is 147547. The next prime is 147551. The reversal of 147550 is 55741.

It is a hoax number, since the sum of its digits (22) coincides with the sum of the digits of its distinct prime factors.

It is a nialpdrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (147551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 537 + ... + 763.

It is an arithmetic number, because the mean of its divisors is an integer number (12369).

2147550 is an apocalyptic number.

147550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

147550 is an abundant number, since it is smaller than the sum of its proper divisors (149306).

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

147550 is a wasteful number, since it uses less digits than its factorization.

147550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252 (or 247 counting only the distinct ones).

The product of its (nonzero) digits is 700, while the sum is 22.

The square root of 147550 is about 384.1223763334. The cubic root of 147550 is about 52.8420597682.

Subtracting from 147550 its reverse (55741), we obtain a square (91809 = 3032).

The spelling of 147550 in words is "one hundred forty-seven thousand, five hundred fifty".

Divisors: 1 2 5 10 13 25 26 50 65 130 227 325 454 650 1135 2270 2951 5675 5902 11350 14755 29510 73775 147550