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331424254 = 27113209497
BaseRepresentation
bin10011110000010…
…010000111111110
3212002122002121101
4103300102013332
51134321034004
652515323314
711133026320
oct2360220776
9762562541
10331424254
11160097a47
1292bb053a
1353881135
1432033610
151e169ba4
hex13c121fe

331424254 has 16 divisors (see below), whose sum is σ = 573186528. Its totient is φ = 140781312.

The previous prime is 331424221. The next prime is 331424257. The reversal of 331424254 is 452424133.

It is a happy number.

It is a super-2 number, since 2×3314242542 = 219684072278913032, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331424257) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103167 + ... + 106330.

It is an arithmetic number, because the mean of its divisors is an integer number (35824158).

Almost surely, 2331424254 is an apocalyptic number.

331424254 is a deficient number, since it is larger than the sum of its proper divisors (241762274).

331424254 is a wasteful number, since it uses less digits than its factorization.

331424254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209619.

The product of its digits is 11520, while the sum is 28.

The square root of 331424254 is about 18205.0612193423. The cubic root of 331424254 is about 692.0350575866.

Adding to 331424254 its reverse (452424133), we get a palindrome (783848387).

The spelling of 331424254 in words is "three hundred thirty-one million, four hundred twenty-four thousand, two hundred fifty-four".

Divisors: 1 2 7 14 113 226 791 1582 209497 418994 1466479 2932958 23673161 47346322 165712127 331424254