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245823072 = 253111311777
BaseRepresentation
bin11101010011011…
…11011001100000
3122010120002212020
432221233121200
51000412314242
640220501440
76043314225
oct1651573140
9563502766
10245823072
11116840570
126a3aa880
133bc0c451
142490d94c
15168ab6ec
hexea6f660

245823072 has 96 divisors (see below), whose sum is σ = 709720704. Its totient is φ = 73881600.

The previous prime is 245823049. The next prime is 245823091. The reversal of 245823072 is 270328542.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 137448 + ... + 139224.

It is an arithmetic number, because the mean of its divisors is an integer number (7392924).

Almost surely, 2245823072 is an apocalyptic number.

245823072 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 245823072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (354860352).

245823072 is an abundant number, since it is smaller than the sum of its proper divisors (463897632).

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

245823072 is a wasteful number, since it uses less digits than its factorization.

245823072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1932 (or 1924 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 33.

The square root of 245823072 is about 15678.7458682128. The cubic root of 245823072 is about 626.4324027545.

The spelling of 245823072 in words is "two hundred forty-five million, eight hundred twenty-three thousand, seventy-two".

Divisors: 1 2 3 4 6 8 11 12 16 22 24 32 33 44 48 66 88 96 131 132 176 262 264 352 393 524 528 786 1048 1056 1441 1572 1777 2096 2882 3144 3554 4192 4323 5331 5764 6288 7108 8646 10662 11528 12576 14216 17292 19547 21324 23056 28432 34584 39094 42648 46112 56864 58641 69168 78188 85296 117282 138336 156376 170592 232787 234564 312752 465574 469128 625504 698361 931148 938256 1396722 1862296 1876512 2560657 2793444 3724592 5121314 5586888 7449184 7681971 10242628 11173776 15363942 20485256 22347552 30727884 40970512 61455768 81941024 122911536 245823072