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677370285 = 32537735573
BaseRepresentation
bin101000010111111…
…101100110101101
31202012120222100100
4220113331212231
52341401322120
6151114221313
722533360324
oct5027754655
91665528310
10677370285
113183a3359
1216aa24839
13aa448027
1465d670bb
153e702490
hex285fd9ad

677370285 has 48 divisors (see below), whose sum is σ = 1222578864. Its totient is φ = 346622976.

The previous prime is 677370283. The next prime is 677370301. The reversal of 677370285 is 582073776.

It can be written as a sum of positive squares in 8 ways, for example, as 6456681 + 670913604 = 2541^2 + 25902^2 .

It is not a de Polignac number, because 677370285 - 21 = 677370283 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 677370285.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (677370283) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 118759 + ... + 124331.

It is an arithmetic number, because the mean of its divisors is an integer number (25470393).

Almost surely, 2677370285 is an apocalyptic number.

It is an amenable number.

677370285 is a deficient number, since it is larger than the sum of its proper divisors (545208579).

677370285 is a wasteful number, since it uses less digits than its factorization.

677370285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5694 (or 5691 counting only the distinct ones).

The product of its (nonzero) digits is 493920, while the sum is 45.

The square root of 677370285 is about 26026.3382941204. The cubic root of 677370285 is about 878.2309005228.

The spelling of 677370285 in words is "six hundred seventy-seven million, three hundred seventy thousand, two hundred eighty-five".

Divisors: 1 3 5 9 15 37 45 73 111 185 219 333 365 555 657 1095 1665 2701 3285 5573 8103 13505 16719 24309 27865 40515 50157 83595 121545 206201 250785 406829 618603 1031005 1220487 1855809 2034145 3093015 3661461 6102435 9279045 15052673 18307305 45158019 75263365 135474057 225790095 677370285