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52403001 = 3721033461
BaseRepresentation
bin1100011111100…
…1101100111001
310122121100101220
43013321230321
5101403344001
65111102253
71204263300
oct307715471
9118540356
1052403001
1127642172
1215671989
13ab1a0c1
146d61437
154901c36
hex31f9b39

52403001 has 24 divisors (see below), whose sum is σ = 82090944. Its totient is φ = 29645280.

The previous prime is 52402997. The next prime is 52403003. The reversal of 52403001 is 10030425.

It is not a de Polignac number, because 52403001 - 22 = 52402997 is a prime.

It is not an unprimeable number, because it can be changed into a prime (52403003) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13411 + ... + 16871.

It is an arithmetic number, because the mean of its divisors is an integer number (3420456).

Almost surely, 252403001 is an apocalyptic number.

It is an amenable number.

52403001 is a deficient number, since it is larger than the sum of its proper divisors (29687943).

52403001 is a wasteful number, since it uses less digits than its factorization.

52403001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3581 (or 3574 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 52403001 is about 7238.9917115576. The cubic root of 52403001 is about 374.2128698479.

Adding to 52403001 its product of nonzero digits (120), we get a square (52403121 = 72392).

Adding to 52403001 its reverse (10030425), we get a palindrome (62433426).

The spelling of 52403001 in words is "fifty-two million, four hundred three thousand, one".

Divisors: 1 3 7 21 49 103 147 309 721 2163 3461 5047 10383 15141 24227 72681 169589 356483 508767 1069449 2495381 7486143 17467667 52403001