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122748 = 22353193
BaseRepresentation
bin11101111101111100
320020101020
4131331330
512411443
62344140
71020603
oct357574
9206336
10122748
118424a
125b050
1343b42
1432a3a
1526583
hex1df7c

122748 has 24 divisors (see below), whose sum is σ = 293328. Its totient is φ = 39936.

The previous prime is 122743. The next prime is 122753. The reversal of 122748 is 847221.

It is an interprime number because it is at equal distance from previous prime (122743) and next prime (122753).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122741) by changing a digit.

122748 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 7 ways as a sum of consecutive naturals, for example, 540 + ... + 732.

It is an arithmetic number, because the mean of its divisors is an integer number (12222).

2122748 is an apocalyptic number.

It is an amenable number.

122748 is an abundant number, since it is smaller than the sum of its proper divisors (170580).

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

122748 is a wasteful number, since it uses less digits than its factorization.

122748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253 (or 251 counting only the distinct ones).

The product of its digits is 896, while the sum is 24.

The square root of 122748 is about 350.3541065836. The cubic root of 122748 is about 49.6979118642.

Adding to 122748 its reverse (847221), we get a palindrome (969969).

It can be divided in two parts, 1227 and 48, that added together give a triangular number (1275 = T50).

The spelling of 122748 in words is "one hundred twenty-two thousand, seven hundred forty-eight".

Divisors: 1 2 3 4 6 12 53 106 159 193 212 318 386 579 636 772 1158 2316 10229 20458 30687 40916 61374 122748