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61987096 = 237748387
BaseRepresentation
bin1110110001110…
…1100100011000
311022122021022101
43230131210120
5111332041341
610052333144
71351611253
oct354354430
9138567271
1061987096
1131a98906
12189141b4
13cac4572
14833809a
155696831
hex3b1d918

61987096 has 8 divisors (see below), whose sum is σ = 116225820. Its totient is φ = 30993544.

The previous prime is 61987069. The next prime is 61987097. The reversal of 61987096 is 69078916.

61987096 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61987097) 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 as a sum of consecutive naturals, namely, 3874186 + ... + 3874201.

Almost surely, 261987096 is an apocalyptic number.

It is an amenable number.

61987096 is a deficient number, since it is larger than the sum of its proper divisors (54238724).

61987096 is a wasteful number, since it uses less digits than its factorization.

61987096 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7748393 (or 7748389 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 46.

The square root of 61987096 is about 7873.1884265525. The cubic root of 61987096 is about 395.7617006578.

The spelling of 61987096 in words is "sixty-one million, nine hundred eighty-seven thousand, ninety-six".

Divisors: 1 2 4 8 7748387 15496774 30993548 61987096