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61984797 = 372951657
BaseRepresentation
bin1110110001110…
…1000000011101
311022122011011020
43230131000131
5111332003142
610052314353
71351601460
oct354350035
9138564136
1061984797
1131a97106
12189129b9
13cac34c4
1483372d7
155695cec
hex3b1d01d

61984797 has 8 divisors (see below), whose sum is σ = 94453056. Its totient is φ = 35419872.

The previous prime is 61984787. The next prime is 61984807. The reversal of 61984797 is 79748916.

61984797 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (61984787) and next prime (61984807).

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

It is not a de Polignac number, because 61984797 - 26 = 61984733 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61984787) 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, 1475808 + ... + 1475849.

It is an arithmetic number, because the mean of its divisors is an integer number (11806632).

Almost surely, 261984797 is an apocalyptic number.

It is an amenable number.

61984797 is a deficient number, since it is larger than the sum of its proper divisors (32468259).

61984797 is a wasteful number, since it uses less digits than its factorization.

61984797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2951667.

The product of its digits is 762048, while the sum is 51.

The square root of 61984797 is about 7873.0424233583. The cubic root of 61984797 is about 395.7568078793.

The spelling of 61984797 in words is "sixty-one million, nine hundred eighty-four thousand, seven hundred ninety-seven".

Divisors: 1 3 7 21 2951657 8854971 20661599 61984797