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245345230 = 251341191241
BaseRepresentation
bin11101001111110…
…10101111001110
3122002122211101101
432213322233032
51000302021410
640202333314
76036254134
oct1647725716
9562584341
10245345230
11116544559
126a1ba23a
133baa2ac0
1424827754
1516814d3a
hexe9fabce

245345230 has 64 divisors (see below), whose sum is σ = 491774976. Its totient is φ = 87552000.

The previous prime is 245345213. The next prime is 245345231. The reversal of 245345230 is 32543542.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245345231) 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 31 ways as a sum of consecutive naturals, for example, 1017910 + ... + 1018150.

It is an arithmetic number, because the mean of its divisors is an integer number (7683984).

Almost surely, 2245345230 is an apocalyptic number.

245345230 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

245345230 is a wasteful number, since it uses less digits than its factorization.

245345230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 493.

The product of its (nonzero) digits is 14400, while the sum is 28.

The square root of 245345230 is about 15663.4999281770. The cubic root of 245345230 is about 626.0262435962.

Adding to 245345230 its reverse (32543542), we get a palindrome (277888772).

The spelling of 245345230 in words is "two hundred forty-five million, three hundred forty-five thousand, two hundred thirty".

Divisors: 1 2 5 10 13 26 41 65 82 130 191 205 241 382 410 482 533 955 1066 1205 1910 2410 2483 2665 3133 4966 5330 6266 7831 9881 12415 15662 15665 19762 24830 31330 39155 46031 49405 78310 92062 98810 101803 128453 203606 230155 256906 460310 509015 598403 642265 1018030 1196806 1284530 1887271 2992015 3774542 5984030 9436355 18872710 24534523 49069046 122672615 245345230