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61462661 = 1337127781
BaseRepresentation
bin1110101001110…
…1100010000101
311021122121220212
43222131202011
5111213301121
610033205205
71344265301
oct352354205
9137577825
1061462661
113176a897
1218700805
13c96c950
14823cd01
1555e125b
hex3a9d885

61462661 has 8 divisors (see below), whose sum is σ = 67980024. Its totient is φ = 55200960.

The previous prime is 61462637. The next prime is 61462679. The reversal of 61462661 is 16626416.

61462661 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 2265025 + 59197636 = 1505^2 + 7694^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 61462661 - 214 = 61446277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61461661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63410 + ... + 64371.

It is an arithmetic number, because the mean of its divisors is an integer number (8497503).

Almost surely, 261462661 is an apocalyptic number.

It is an amenable number.

61462661 is a deficient number, since it is larger than the sum of its proper divisors (6517363).

61462661 is a wasteful number, since it uses less digits than its factorization.

61462661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127831.

The product of its digits is 10368, while the sum is 32.

The square root of 61462661 is about 7839.8125615349. The cubic root of 61462661 is about 394.6424388046.

The spelling of 61462661 in words is "sixty-one million, four hundred sixty-two thousand, six hundred sixty-one".

Divisors: 1 13 37 481 127781 1661153 4727897 61462661