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61075812948 = 22345677111427
BaseRepresentation
bin111000111000011001…
…101111001001010100
312211122110220202200020
4320320121233021110
52000040402003243
644020254345140
74261341562413
oct707031571124
9184573822606
1061075812948
11239a1782277
12ba061bb1b0
1359b45bc9b7
142d556d747a
1518c6e0c283
hexe3866f254

61075812948 has 24 divisors (see below), whose sum is σ = 142514629152. Its totient is φ = 20357975904.

The previous prime is 61075812929. The next prime is 61075812953. The reversal of 61075812948 is 84921857016.

61075812948 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 61075812948.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 492411 + ... + 603837.

It is an arithmetic number, because the mean of its divisors is an integer number (5938109548).

Almost surely, 261075812948 is an apocalyptic number.

It is an amenable number.

61075812948 is an abundant number, since it is smaller than the sum of its proper divisors (81438816204).

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

61075812948 is a wasteful number, since it uses less digits than its factorization.

61075812948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157111 (or 157109 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 51.

The spelling of 61075812948 in words is "sixty-one billion, seventy-five million, eight hundred twelve thousand, nine hundred forty-eight".

Divisors: 1 2 3 4 6 12 45677 91354 111427 137031 182708 222854 274062 334281 445708 548124 668562 1337124 5089651079 10179302158 15268953237 20358604316 30537906474 61075812948