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677914642 = 21979225821
BaseRepresentation
bin101000011010000…
…010100000010010
31202020121122001201
4220122002200102
52342021232032
6151134021414
722541115346
oct5032024022
91666548051
10677914642
11318735339
1216b04786a
13aa5a8a32
1466069626
153e7ad8e7
hex28682812

677914642 has 16 divisors (see below), whose sum is σ = 1083945600. Its totient is φ = 317051280.

The previous prime is 677914621. The next prime is 677914649. The reversal of 677914642 is 246419776.

It is a junction number, because it is equal to n+sod(n) for n = 677914592 and 677914601.

It is not an unprimeable number, because it can be changed into a prime (677914649) 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, 109909 + ... + 115912.

It is an arithmetic number, because the mean of its divisors is an integer number (67746600).

Almost surely, 2677914642 is an apocalyptic number.

677914642 is a deficient number, since it is larger than the sum of its proper divisors (406030958).

677914642 is a wasteful number, since it uses less digits than its factorization.

677914642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225921.

The product of its digits is 508032, while the sum is 46.

The square root of 677914642 is about 26036.7940038708. The cubic root of 677914642 is about 878.4660959255.

The spelling of 677914642 in words is "six hundred seventy-seven million, nine hundred fourteen thousand, six hundred forty-two".

Divisors: 1 2 19 38 79 158 1501 3002 225821 451642 4290599 8581198 17839859 35679718 338957321 677914642