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61357605 = 354090507
BaseRepresentation
bin1110101000001…
…1111000100101
311021110021210220
43222003320211
5111201420410
610031034553
71343350101
oct352037045
9137407726
1061357605
11316a8971
121866ba59
13c933b9a
148212901
1555c0070
hex3a83e25

61357605 has 8 divisors (see below), whose sum is σ = 98172192. Its totient is φ = 32724048.

The previous prime is 61357577. The next prime is 61357609. The reversal of 61357605 is 50675316.

61357605 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 61357605 - 214 = 61341221 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61357609) 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, 2045239 + ... + 2045268.

It is an arithmetic number, because the mean of its divisors is an integer number (12271524).

Almost surely, 261357605 is an apocalyptic number.

It is an amenable number.

61357605 is a deficient number, since it is larger than the sum of its proper divisors (36814587).

61357605 is a wasteful number, since it uses less digits than its factorization.

61357605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4090515.

The product of its (nonzero) digits is 18900, while the sum is 33.

The square root of 61357605 is about 7833.1095358102. The cubic root of 61357605 is about 394.4174610179.

The spelling of 61357605 in words is "sixty-one million, three hundred fifty-seven thousand, six hundred five".

Divisors: 1 3 5 15 4090507 12271521 20452535 61357605