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61353741 = 320451247
BaseRepresentation
bin1110101000001…
…0111100001101
311021110002111210
43222002330031
5111201304431
610031005033
71343332611
oct352027415
9137402453
1061353741
11316a5a79
1218669779
13c9321b7
148211341
1555bdd46
hex3a82f0d

61353741 has 4 divisors (see below), whose sum is σ = 81804992. Its totient is φ = 40902492.

The previous prime is 61353737. The next prime is 61353749. The reversal of 61353741 is 14735316.

61353741 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 61353741 - 22 = 61353737 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 61353699 and 61353708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61353749) 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 3 ways as a sum of consecutive naturals, for example, 10225621 + ... + 10225626.

It is an arithmetic number, because the mean of its divisors is an integer number (20451248).

Almost surely, 261353741 is an apocalyptic number.

It is an amenable number.

61353741 is a deficient number, since it is larger than the sum of its proper divisors (20451251).

61353741 is a wasteful number, since it uses less digits than its factorization.

61353741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20451250.

The product of its digits is 7560, while the sum is 30.

The square root of 61353741 is about 7832.8628865824. The cubic root of 61353741 is about 394.4091813539.

The spelling of 61353741 in words is "sixty-one million, three hundred fifty-three thousand, seven hundred forty-one".

Divisors: 1 3 20451247 61353741