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681077 = 4347337
BaseRepresentation
bin10100110010001110101
31021121021002
42212101311
5133243302
622333045
75534435
oct2462165
91247232
10681077
11425781
1228a185
131ab007
1413a2c5
15d6c02
hexa6475

681077 has 8 divisors (see below), whose sum is σ = 713856. Its totient is φ = 649152.

The previous prime is 681067. The next prime is 681089. The reversal of 681077 is 770186.

681077 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 681077 - 24 = 681061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (681047) 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, 1853 + ... + 2189.

It is an arithmetic number, because the mean of its divisors is an integer number (89232).

2681077 is an apocalyptic number.

681077 is the 674-th pentagonal number.

It is an amenable number.

681077 is a deficient number, since it is larger than the sum of its proper divisors (32779).

681077 is a wasteful number, since it uses less digits than its factorization.

681077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427.

The product of its (nonzero) digits is 2352, while the sum is 29.

The square root of 681077 is about 825.2738939286. The cubic root of 681077 is about 87.9829943035.

The spelling of 681077 in words is "six hundred eighty-one thousand, seventy-seven".

Divisors: 1 43 47 337 2021 14491 15839 681077