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1368501869 = 7375283791
BaseRepresentation
bin101000110010001…
…1010111001101101
310112101002002122102
41101210122321231
510300314024434
6343443424445
745625034240
oct12144327155
93471062572
101368501869
11642535789
12322385125
1318a6a0927
14cda73257
158022207e
hex5191ae6d

1368501869 has 8 divisors (see below), whose sum is σ = 1606272768. Its totient is φ = 1141298640.

The previous prime is 1368501857. The next prime is 1368501889. The reversal of 1368501869 is 9681058631.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1368501869 is a prime.

It is a super-2 number, since 2×13685018692 = 3745594730912986322, 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 (1368501889) 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, 2641637 + ... + 2642154.

It is an arithmetic number, because the mean of its divisors is an integer number (200784096).

Almost surely, 21368501869 is an apocalyptic number.

It is an amenable number.

1368501869 is a deficient number, since it is larger than the sum of its proper divisors (237770899).

1368501869 is an equidigital number, since it uses as much as digits as its factorization.

1368501869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5283835.

The product of its (nonzero) digits is 311040, while the sum is 47.

The square root of 1368501869 is about 36993.2678875495. The cubic root of 1368501869 is about 1110.2355556143.

The spelling of 1368501869 in words is "one billion, three hundred sixty-eight million, five hundred one thousand, eight hundred sixty-nine".

Divisors: 1 7 37 259 5283791 36986537 195500267 1368501869