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1980886315 = 51621244403
BaseRepresentation
bin111011000010001…
…1110110100101011
312010001101110011211
41312010132310223
513024101330230
6524321133551
7100042153522
oct16604366453
95101343154
101980886315
11927182231
1247348a2b7
132575144a5
1414b1214b9
15b8d8942a
hex7611ed2b

1980886315 has 8 divisors (see below), whose sum is σ = 2378539728. Its totient is φ = 1583724960.

The previous prime is 1980886307. The next prime is 1980886343. The reversal of 1980886315 is 5136880891.

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

It is not a de Polignac number, because 1980886315 - 23 = 1980886307 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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, 114097 + ... + 130306.

It is an arithmetic number, because the mean of its divisors is an integer number (297317466).

Almost surely, 21980886315 is an apocalyptic number.

1980886315 is a deficient number, since it is larger than the sum of its proper divisors (397653413).

1980886315 is a wasteful number, since it uses less digits than its factorization.

1980886315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246029.

The product of its (nonzero) digits is 414720, while the sum is 49.

The square root of 1980886315 is about 44507.1490324869. The cubic root of 1980886315 is about 1255.8945733770.

The spelling of 1980886315 in words is "one billion, nine hundred eighty million, eight hundred eighty-six thousand, three hundred fifteen".

Divisors: 1 5 1621 8105 244403 1222015 396177263 1980886315