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485402031 = 3317977853
BaseRepresentation
bin11100111011101…
…010010110101111
31020211100222102000
4130323222112233
51443230331111
6120055503343
715012564162
oct3473522657
91224328360
10485402031
11229aa6804
12116687b53
137974374a
1448675ad9
152c932c56
hex1ceea5af

485402031 has 8 divisors (see below), whose sum is σ = 719114160. Its totient is φ = 323601336.

The previous prime is 485401981. The next prime is 485402077. The reversal of 485402031 is 130204584.

It is not a de Polignac number, because 485402031 - 26 = 485401967 is a prime.

It is a super-2 number, since 2×4854020312 = 471230263397849922, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 17977853 = 485402031 / (4 + 8 + 5 + 4 + 0 + 2 + 0 + 3 + 1).

It is a junction number, because it is equal to n+sod(n) for n = 485401986 and 485402004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (485402131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8988900 + ... + 8988953.

It is an arithmetic number, because the mean of its divisors is an integer number (89889270).

Almost surely, 2485402031 is an apocalyptic number.

485402031 is a deficient number, since it is larger than the sum of its proper divisors (233712129).

485402031 is a wasteful number, since it uses less digits than its factorization.

485402031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17977862 (or 17977856 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 485402031 is about 22031.8412984480. The cubic root of 485402031 is about 785.8998328154.

The spelling of 485402031 in words is "four hundred eighty-five million, four hundred two thousand, thirty-one".

Divisors: 1 3 9 27 17977853 53933559 161800677 485402031