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1364430661 = 11929133519
BaseRepresentation
bin101000101010011…
…1000111101000101
310112002102020222221
41101110320331011
510243243240121
6343220252341
745545316646
oct12124707505
93462366887
101364430661
11640204a50
12320b410b1
131898a6829
14cd2d36cd
157ebbab41
hex51538f45

1364430661 has 8 divisors (see below), whose sum is σ = 1490083200. Its totient is φ = 1239047040.

The previous prime is 1364430619. The next prime is 1364430667. The reversal of 1364430661 is 1660344631.

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

It is not a de Polignac number, because 1364430661 - 213 = 1364422469 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1364430667) 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, 56541 + ... + 76978.

It is an arithmetic number, because the mean of its divisors is an integer number (186260400).

Almost surely, 21364430661 is an apocalyptic number.

1364430661 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1364430661 is a deficient number, since it is larger than the sum of its proper divisors (125652539).

1364430661 is a wasteful number, since it uses less digits than its factorization.

1364430661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134459.

The product of its (nonzero) digits is 31104, while the sum is 34.

The square root of 1364430661 is about 36938.2005652685. The cubic root of 1364430661 is about 1109.1335014530.

The spelling of 1364430661 in words is "one billion, three hundred sixty-four million, four hundred thirty thousand, six hundred sixty-one".

Divisors: 1 11 929 10219 133519 1468709 124039151 1364430661