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52481701 = 341315377
BaseRepresentation
bin1100100000110…
…0111010100101
310122202100100201
43020030322211
5101413403301
65112510501
71205041606
oct310147245
9118670321
1052481701
1127696308
12156ab431
13ab46b7c
146d81dad
15491a201
hex320cea5

52481701 has 4 divisors (see below), whose sum is σ = 52500492. Its totient is φ = 52462912.

The previous prime is 52481687. The next prime is 52481707. The reversal of 52481701 is 10718425.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 51624225 + 857476 = 7185^2 + 926^2 .

It is a cyclic number.

It is not a de Polignac number, because 52481701 - 219 = 51957413 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 52481701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52481707) 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, 4276 + ... + 11101.

It is an arithmetic number, because the mean of its divisors is an integer number (13125123).

Almost surely, 252481701 is an apocalyptic number.

It is an amenable number.

52481701 is a deficient number, since it is larger than the sum of its proper divisors (18791).

52481701 is a wasteful number, since it uses less digits than its factorization.

52481701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18790.

The product of its (nonzero) digits is 2240, while the sum is 28.

The square root of 52481701 is about 7244.4255120748. The cubic root of 52481701 is about 374.4001099004.

The spelling of 52481701 in words is "fifty-two million, four hundred eighty-one thousand, seven hundred one".

Divisors: 1 3413 15377 52481701