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253100124 = 22328118669
BaseRepresentation
bin11110001011000…
…00000001011100
3122122020211002200
433011200001130
51004243200444
641040451500
76162213144
oct1705400134
9578224080
10253100124
1111a960962
1270919b90
13405897b4
1425885924
1517347969
hexf16005c

253100124 has 36 divisors (see below), whose sum is σ = 640643640. Its totient is φ = 84252960.

The previous prime is 253100087. The next prime is 253100129. The reversal of 253100124 is 421001352.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-3 number, since 3×2531001243 (a number of 26 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 253100097 and 253100106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253100129) 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 11 ways as a sum of consecutive naturals, for example, 24862 + ... + 33530.

Almost surely, 2253100124 is an apocalyptic number.

It is an amenable number.

253100124 is an abundant number, since it is smaller than the sum of its proper divisors (387543516).

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

253100124 is a wasteful number, since it uses less digits than its factorization.

253100124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9490 (or 9485 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 253100124 is about 15909.1207802317. The cubic root of 253100124 is about 632.5537760940.

Adding to 253100124 its reverse (421001352), we get a palindrome (674101476).

The spelling of 253100124 in words is "two hundred fifty-three million, one hundred thousand, one hundred twenty-four".

Divisors: 1 2 3 4 6 9 12 18 36 811 1622 2433 3244 4866 7299 8669 9732 14598 17338 26007 29196 34676 52014 78021 104028 156042 312084 7030559 14061118 21091677 28122236 42183354 63275031 84366708 126550062 253100124