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61352245 = 5100912161
BaseRepresentation
bin1110101000001…
…0100100110101
311021110000110101
43222002210311
5111201232440
610030554101
71343325343
oct352024465
9137400411
1061352245
11316a4939
1218668931
13c931606
148210993
1555bd69a
hex3a82935

61352245 has 8 divisors (see below), whose sum is σ = 73701720. Its totient is φ = 49029120.

The previous prime is 61352233. The next prime is 61352251. The reversal of 61352245 is 54225316.

It can be written as a sum of positive squares in 4 ways, for example, as 418609 + 60933636 = 647^2 + 7806^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 61352245 - 27 = 61352117 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1036 + ... + 11125.

It is an arithmetic number, because the mean of its divisors is an integer number (9212715).

Almost surely, 261352245 is an apocalyptic number.

It is an amenable number.

61352245 is a deficient number, since it is larger than the sum of its proper divisors (12349475).

61352245 is a wasteful number, since it uses less digits than its factorization.

61352245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13175.

The product of its digits is 7200, while the sum is 28.

The square root of 61352245 is about 7832.7673909034. The cubic root of 61352245 is about 394.4059756763.

The spelling of 61352245 in words is "sixty-one million, three hundred fifty-two thousand, two hundred forty-five".

Divisors: 1 5 1009 5045 12161 60805 12270449 61352245