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681077055 = 3545405137
BaseRepresentation
bin101000100110000…
…110100100111111
31202110120022002010
4220212012210333
52343323431210
6151325502303
722610026251
oct5046064477
91673508063
10681077055
1131a4a52aa
12170111993
13ab145299
146664dcd1
153ebd5920
hex2898693f

681077055 has 8 divisors (see below), whose sum is σ = 1089723312. Its totient is φ = 363241088.

The previous prime is 681077053. The next prime is 681077057. The reversal of 681077055 is 550770186.

681077055 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (681077053) and next prime (681077057).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 681077055 - 21 = 681077053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (681077051) 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, 22702554 + ... + 22702583.

It is an arithmetic number, because the mean of its divisors is an integer number (136215414).

Almost surely, 2681077055 is an apocalyptic number.

681077055 is a deficient number, since it is larger than the sum of its proper divisors (408646257).

681077055 is a wasteful number, since it uses less digits than its factorization.

681077055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45405145.

The product of its (nonzero) digits is 58800, while the sum is 39.

The square root of 681077055 is about 26097.4530366471. The cubic root of 681077055 is about 879.8299667179.

The spelling of 681077055 in words is "six hundred eighty-one million, seventy-seven thousand, fifty-five".

Divisors: 1 3 5 15 45405137 136215411 227025685 681077055