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1368770687 = 23279721277
BaseRepresentation
bin101000110010101…
…1100100001111111
310112101120202101122
41101211130201333
510300401130222
6343453301155
745630234044
oct12145344177
93471522348
101368770687
116426a9749
123224947bb
1318a7660ab
14cdb031cb
1580276a42
hex5195c87f

1368770687 has 8 divisors (see below), whose sum is σ = 1428860256. Its totient is φ = 1308729312.

The previous prime is 1368770653. The next prime is 1368770701. The reversal of 1368770687 is 7860778631.

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 1368770687 - 228 = 1100335231 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 (1368770617) 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 7 ways as a sum of consecutive naturals, for example, 53693 + ... + 74969.

It is an arithmetic number, because the mean of its divisors is an integer number (178607532).

Almost surely, 21368770687 is an apocalyptic number.

1368770687 is a deficient number, since it is larger than the sum of its proper divisors (60089569).

1368770687 is a wasteful number, since it uses less digits than its factorization.

1368770687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24097.

The product of its (nonzero) digits is 2370816, while the sum is 53.

The square root of 1368770687 is about 36996.9010458984. The cubic root of 1368770687 is about 1110.3082462377.

The spelling of 1368770687 in words is "one billion, three hundred sixty-eight million, seven hundred seventy thousand, six hundred eighty-seven".

Divisors: 1 23 2797 21277 64331 489371 59511769 1368770687