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1068251749 = 8313219743
BaseRepresentation
bin111111101011000…
…011101001100101
32202110002210220121
4333223003221211
54141433023444
6254000201541
735320663405
oct7753035145
92673083817
101068251749
114a9000394
122599092b1
13140416036
14a1c36805
1563bb4084
hex3fac3a65

1068251749 has 8 divisors (see below), whose sum is σ = 1082051712. Its totient is φ = 1054474080.

The previous prime is 1068251741. The next prime is 1068251771. The reversal of 1068251749 is 9471528601.

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

It is a cyclic number.

It is not a de Polignac number, because 1068251749 - 23 = 1068251741 is a prime.

It is a super-2 number, since 2×10682517492 = 2282323598483118002, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1068251741) 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, 104772 + ... + 114514.

It is an arithmetic number, because the mean of its divisors is an integer number (135256464).

Almost surely, 21068251749 is an apocalyptic number.

It is an amenable number.

1068251749 is a deficient number, since it is larger than the sum of its proper divisors (13799963).

1068251749 is an equidigital number, since it uses as much as digits as its factorization.

1068251749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11147.

The product of its (nonzero) digits is 120960, while the sum is 43.

The square root of 1068251749 is about 32684.1207469315. The cubic root of 1068251749 is about 1022.2517691789.

The spelling of 1068251749 in words is "one billion, sixty-eight million, two hundred fifty-one thousand, seven hundred forty-nine".

Divisors: 1 83 1321 9743 109643 808669 12870503 1068251749