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61987852 = 2223673781
BaseRepresentation
bin1110110001110…
…1110000001100
311022122022100101
43230131300030
5111332102402
610052340444
71351613413
oct354356014
9138568311
1061987852
1131a99433
1218914724
13cac4a04
14833847a
155696b87
hex3b1dc0c

61987852 has 12 divisors (see below), whose sum is σ = 113195376. Its totient is φ = 29646320.

The previous prime is 61987843. The next prime is 61987853. The reversal of 61987852 is 25878916.

61987852 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is not an unprimeable number, because it can be changed into a prime (61987853) 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, 336799 + ... + 336982.

It is an arithmetic number, because the mean of its divisors is an integer number (9432948).

Almost surely, 261987852 is an apocalyptic number.

It is an amenable number.

61987852 is a deficient number, since it is larger than the sum of its proper divisors (51207524).

61987852 is a wasteful number, since it uses less digits than its factorization.

61987852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 673808 (or 673806 counting only the distinct ones).

The product of its digits is 241920, while the sum is 46.

The square root of 61987852 is about 7873.2364374506. The cubic root of 61987852 is about 395.7633095660.

The spelling of 61987852 in words is "sixty-one million, nine hundred eighty-seven thousand, eight hundred fifty-two".

Divisors: 1 2 4 23 46 92 673781 1347562 2695124 15496963 30993926 61987852