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61027752212 = 2272179562579
BaseRepresentation
bin111000110101100010…
…011001100100010100
312211112010111000201222
4320311202121210110
51444441101032322
644011420305512
74260216222560
oct706542314424
9184463430658
1061027752212
1123977636559
12b9b20a2298
1359a76631ab
142d4d1866a0
1518c2ab6e42
hexe35899914

61027752212 has 12 divisors (see below), whose sum is σ = 122055504480. Its totient is φ = 26154750936.

The previous prime is 61027752199. The next prime is 61027752217. The reversal of 61027752212 is 21225772016.

61027752212 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61027752217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1089781262 + ... + 1089781317.

It is an arithmetic number, because the mean of its divisors is an integer number (10171292040).

Almost surely, 261027752212 is an apocalyptic number.

It is an amenable number.

61027752212 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61027752212 is a wasteful number, since it uses less digits than its factorization.

61027752212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2179562590 (or 2179562588 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 35.

The spelling of 61027752212 in words is "sixty-one billion, twenty-seven million, seven hundred fifty-two thousand, two hundred twelve".

Divisors: 1 2 4 7 14 28 2179562579 4359125158 8718250316 15256938053 30513876106 61027752212