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61429 = 471307
BaseRepresentation
bin1110111111110101
310010021011
432333311
53431204
61152221
7344044
oct167765
9103234
1061429
1142175
122b671
1321c64
141855b
1513304
hexeff5

61429 has 4 divisors (see below), whose sum is σ = 62784. Its totient is φ = 60076.

The previous prime is 61417. The next prime is 61441. The reversal of 61429 is 92416.

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 an interprime number because it is at equal distance from previous prime (61417) and next prime (61441).

It is a cyclic number.

It is not a de Polignac number, because 61429 - 29 = 60917 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61409) 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, 607 + ... + 700.

It is an arithmetic number, because the mean of its divisors is an integer number (15696).

261429 is an apocalyptic number.

It is an amenable number.

61429 is a deficient number, since it is larger than the sum of its proper divisors (1355).

61429 is a wasteful number, since it uses less digits than its factorization.

61429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1354.

The product of its digits is 432, while the sum is 22.

The square root of 61429 is about 247.8487441969. The cubic root of 61429 is about 39.4570381587.

It can be divided in two parts, 6142 and 9, that multiplied together give a triangular number (55278 = T332).

The spelling of 61429 in words is "sixty-one thousand, four hundred twenty-nine".

Divisors: 1 47 1307 61429