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245313142 = 21973191463
BaseRepresentation
bin11101001111100…
…10111001110110
3122002121012100221
432213302321312
51000300010032
640201524554
76036061444
oct1647627166
9562535327
10245313142
11116522438
126a1a375a
133ba91309
1424819b94
151680a597
hexe9f2e76

245313142 has 32 divisors (see below), whose sum is σ = 395550720. Its totient is φ = 113762880.

The previous prime is 245313121. The next prime is 245313149. The reversal of 245313142 is 241313542.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245313149) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 529603 + ... + 530065.

It is an arithmetic number, because the mean of its divisors is an integer number (12360960).

Almost surely, 2245313142 is an apocalyptic number.

245313142 is a deficient number, since it is larger than the sum of its proper divisors (150237578).

245313142 is a wasteful number, since it uses less digits than its factorization.

245313142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 748.

The product of its digits is 2880, while the sum is 25.

The square root of 245313142 is about 15662.4756025349. The cubic root of 245313142 is about 625.9989503465.

Adding to 245313142 its reverse (241313542), we get a palindrome (486626684).

The spelling of 245313142 in words is "two hundred forty-five million, three hundred thirteen thousand, one hundred forty-two".

Divisors: 1 2 19 38 73 146 191 382 463 926 1387 2774 3629 7258 8797 13943 17594 27886 33799 67598 88433 176866 264917 529834 642181 1284362 1680227 3360454 6455609 12911218 122656571 245313142