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268993430 = 25208712889
BaseRepresentation
bin10000000010001…
…000001110010110
3200202011021121122
4100002020032112
51022330242210
642405243542
76444256256
oct2002101626
9622137548
10268993430
11128926822
12761035b2
1343962914
1427a21966
1518936b55
hex10088396

268993430 has 16 divisors (see below), whose sum is σ = 484457760. Its totient is φ = 107537472.

The previous prime is 268993429. The next prime is 268993433. The reversal of 268993430 is 34399862.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268993433) 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, 14426 + ... + 27314.

It is an arithmetic number, because the mean of its divisors is an integer number (30278610).

Almost surely, 2268993430 is an apocalyptic number.

268993430 is a deficient number, since it is larger than the sum of its proper divisors (215464330).

268993430 is a wasteful number, since it uses less digits than its factorization.

268993430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14983.

The product of its (nonzero) digits is 279936, while the sum is 44.

The square root of 268993430 is about 16401.0191756488. The cubic root of 268993430 is about 645.5262256089.

The spelling of 268993430 in words is "two hundred sixty-eight million, nine hundred ninety-three thousand, four hundred thirty".

Divisors: 1 2 5 10 2087 4174 10435 12889 20870 25778 64445 128890 26899343 53798686 134496715 268993430