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61984542302 = 230992271151
BaseRepresentation
bin111001101110100100…
…010000111001011110
312220222210211222222222
4321232210100321132
52003421020323202
644250355505342
74323014626214
oct715644207136
9186883758888
1061984542302
1124318727071
121001a5b8252
135aca951787
143000286cb4
15192bab04a2
hexe6e910e5e

61984542302 has 4 divisors (see below), whose sum is σ = 92976813456. Its totient is φ = 30992271150.

The previous prime is 61984542281. The next prime is 61984542343. The reversal of 61984542302 is 20324548916.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15496135574 + ... + 15496135577.

It is an arithmetic number, because the mean of its divisors is an integer number (23244203364).

Almost surely, 261984542302 is an apocalyptic number.

61984542302 is a deficient number, since it is larger than the sum of its proper divisors (30992271154).

61984542302 is a wasteful number, since it uses less digits than its factorization.

61984542302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30992271153.

The product of its (nonzero) digits is 414720, while the sum is 44.

The spelling of 61984542302 in words is "sixty-one billion, nine hundred eighty-four million, five hundred forty-two thousand, three hundred two".

Divisors: 1 2 30992271151 61984542302