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61040092128 = 2536110423513
BaseRepresentation
bin111000110110010001…
…011110001111100000
312211112222200221220220
4320312101132033200
52000002230422003
644012541003040
74260426136161
oct706621361740
9184488627826
1061040092128
11239835a4734
12b9b6253480
1359aa093b12
142d50a79768
1518c3c03353
hexe3645e3e0

61040092128 has 48 divisors (see below), whose sum is σ = 162856982736. Its totient is φ = 20013143040.

The previous prime is 61040092121. The next prime is 61040092129. The reversal of 61040092128 is 82129004016.

61040092128 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 (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61040092121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5205901 + ... + 5217612.

It is an arithmetic number, because the mean of its divisors is an integer number (3392853807).

Almost surely, 261040092128 is an apocalyptic number.

It is an amenable number.

61040092128 is an abundant number, since it is smaller than the sum of its proper divisors (101816890608).

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

61040092128 is a wasteful number, since it uses less digits than its factorization.

61040092128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10423587 (or 10423579 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 33.

The spelling of 61040092128 in words is "sixty-one billion, forty million, ninety-two thousand, one hundred twenty-eight".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 61 96 122 183 244 366 488 732 976 1464 1952 2928 5856 10423513 20847026 31270539 41694052 62541078 83388104 125082156 166776208 250164312 333552416 500328624 635834293 1000657248 1271668586 1907502879 2543337172 3815005758 5086674344 7630011516 10173348688 15260023032 20346697376 30520046064 61040092128