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61652013 = 3171208863
BaseRepresentation
bin1110101100101…
…1110000101101
311022000020122220
43223023300231
5111240331023
610041225553
71346014323
oct353136055
9138006586
1061652013
113188a085
12187922b9
13ca07ba7
14828bd13
15562c3e3
hex3acbc2d

61652013 has 8 divisors (see below), whose sum is σ = 87038208. Its totient is φ = 38683584.

The previous prime is 61651951. The next prime is 61652083. The reversal of 61652013 is 31025616.

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

It is not a de Polignac number, because 61652013 - 28 = 61651757 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61652083) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 604381 + ... + 604482.

It is an arithmetic number, because the mean of its divisors is an integer number (10879776).

Almost surely, 261652013 is an apocalyptic number.

It is an amenable number.

61652013 is a deficient number, since it is larger than the sum of its proper divisors (25386195).

61652013 is a wasteful number, since it uses less digits than its factorization.

61652013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1208883.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 61652013 is about 7851.8795838958. The cubic root of 61652013 is about 395.0472901774.

Adding to 61652013 its reverse (31025616), we get a palindrome (92677629).

The spelling of 61652013 in words is "sixty-one million, six hundred fifty-two thousand, thirteen".

Divisors: 1 3 17 51 1208863 3626589 20550671 61652013