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245086416 = 243217531889
BaseRepresentation
bin11101001101110…
…11100011010000
3122002011200100200
432212323203100
51000220231131
640153015200
76034125441
oct1646734320
9562150320
10245086416
11116388063
126a0b4500
133ba12063
142479b2c8
15167b32e6
hexe9bb8d0

245086416 has 120 divisors (see below), whose sum is σ = 740343240. Its totient is φ = 75399168.

The previous prime is 245086393. The next prime is 245086421. The reversal of 245086416 is 614680542.

245086416 is a `hidden beast` number, since 2 + 4 + 5 + 0 + 8 + 641 + 6 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 88736400 + 156350016 = 9420^2 + 12504^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 128800 + ... + 130688.

It is an arithmetic number, because the mean of its divisors is an integer number (6169527).

Almost surely, 2245086416 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 245086416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (370171620).

245086416 is an abundant number, since it is smaller than the sum of its proper divisors (495256824).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

245086416 is a wasteful number, since it uses less digits than its factorization.

245086416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1973 (or 1964 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The square root of 245086416 is about 15655.2360569875. The cubic root of 245086416 is about 625.8060350318.

The spelling of 245086416 in words is "two hundred forty-five million, eighty-six thousand, four hundred sixteen".

Divisors: 1 2 3 4 6 8 9 12 16 17 18 24 34 36 48 51 53 68 72 102 106 136 144 153 159 204 212 272 306 318 408 424 477 612 636 816 848 901 954 1224 1272 1802 1889 1908 2448 2544 2703 3604 3778 3816 5406 5667 7208 7556 7632 8109 10812 11334 14416 15112 16218 17001 21624 22668 30224 32113 32436 34002 43248 45336 64226 64872 68004 90672 96339 100117 128452 129744 136008 192678 200234 256904 272016 289017 300351 385356 400468 513808 578034 600702 770712 800936 901053 1156068 1201404 1541424 1601872 1701989 1802106 2312136 2402808 3403978 3604212 4624272 4805616 5105967 6807956 7208424 10211934 13615912 14416848 15317901 20423868 27231824 30635802 40847736 61271604 81695472 122543208 245086416