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52478001 = 3214534013
BaseRepresentation
bin1100100000110…
…0000000110001
310122202011021200
43020030000301
5101413244001
65112441413
71205025042
oct310140061
9118664250
1052478001
1127693554
12156a9269
13ab45294
146d808c9
154919086
hex320c031

52478001 has 12 divisors (see below), whose sum is σ = 75872628. Its totient is φ = 34952544.

The previous prime is 52477979. The next prime is 52478047. The reversal of 52478001 is 10087425.

It can be written as a sum of positive squares in 2 ways, for example, as 48316401 + 4161600 = 6951^2 + 2040^2 .

It is not a de Polignac number, because 52478001 - 25 = 52477969 is a prime.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (52478501) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11071 + ... + 15083.

It is an arithmetic number, because the mean of its divisors is an integer number (6322719).

Almost surely, 252478001 is an apocalyptic number.

It is an amenable number.

52478001 is a deficient number, since it is larger than the sum of its proper divisors (23394627).

52478001 is a wasteful number, since it uses less digits than its factorization.

52478001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5472 (or 5469 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 52478001 is about 7244.1701388082. The cubic root of 52478001 is about 374.3913111957.

The spelling of 52478001 in words is "fifty-two million, four hundred seventy-eight thousand, one".

Divisors: 1 3 9 1453 4013 4359 12039 13077 36117 5830889 17492667 52478001