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1268901498 = 23211483583
BaseRepresentation
bin100101110100001…
…1110011001111010
310021102122212121210
41023220132121322
510044314321443
6325524543550
743305325164
oct11350363172
93242585553
101268901498
115a1297527
122b4b51bb6
13172b69cb7
14c0747934
15765eac33
hex4ba1e67a

1268901498 has 8 divisors (see below), whose sum is σ = 2537803008. Its totient is φ = 422967164.

The previous prime is 1268901493. The next prime is 1268901503. The reversal of 1268901498 is 8941098621.

It is an interprime number because it is at equal distance from previous prime (1268901493) and next prime (1268901503).

It is a sphenic number, since it is the product of 3 distinct primes.

1268901498 is an admirable number.

It is a super-2 number, since 2×12689014982 = 3220222023253288008, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1268901493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105741786 + ... + 105741797.

It is an arithmetic number, because the mean of its divisors is an integer number (317225376).

Almost surely, 21268901498 is an apocalyptic number.

1268901498 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1268901498 is a wasteful number, since it uses less digits than its factorization.

1268901498 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211483588.

The product of its (nonzero) digits is 248832, while the sum is 48.

The square root of 1268901498 is about 35621.6436734747. The cubic root of 1268901498 is about 1082.6198109774.

The spelling of 1268901498 in words is "one billion, two hundred sixty-eight million, nine hundred one thousand, four hundred ninety-eight".

Divisors: 1 2 3 6 211483583 422967166 634450749 1268901498