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124144436 = 22132387393
BaseRepresentation
bin1110110011001…
…00101100110100
322122121012011002
413121210230310
5223240110221
620152502432
73035132063
oct731445464
9278535132
10124144436
1164092609
12356aaa18
131c948460
14126b81da
15ad7380b
hex7664b34

124144436 has 12 divisors (see below), whose sum is σ = 233964612. Its totient is φ = 57297408.

The previous prime is 124144417. The next prime is 124144439. The reversal of 124144436 is 634441421.

It can be written as a sum of positive squares in 2 ways, for example, as 12208036 + 111936400 = 3494^2 + 10580^2 .

It is a junction number, because it is equal to n+sod(n) for n = 124144399 and 124144408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124144439) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1193645 + ... + 1193748.

It is an arithmetic number, because the mean of its divisors is an integer number (19497051).

Almost surely, 2124144436 is an apocalyptic number.

It is an amenable number.

124144436 is a deficient number, since it is larger than the sum of its proper divisors (109820176).

124144436 is a wasteful number, since it uses less digits than its factorization.

124144436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2387410 (or 2387408 counting only the distinct ones).

The product of its digits is 9216, while the sum is 29.

The square root of 124144436 is about 11142.0122060604. The cubic root of 124144436 is about 498.8566354278.

Adding to 124144436 its reverse (634441421), we get a palindrome (758585857).

The spelling of 124144436 in words is "one hundred twenty-four million, one hundred forty-four thousand, four hundred thirty-six".

Divisors: 1 2 4 13 26 52 2387393 4774786 9549572 31036109 62072218 124144436