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1220314431986 = 213251901320747
BaseRepresentation
bin10001110000100000011…
…010001000000111110010
311022122211210220011211022
4101300200122020013302
5124443200443310421
62332334341215442
7154110346345166
oct21604032100762
94278753804738
101220314431986
11430594757561
12178608a01582
138b0c9174370
14430c649cca6
1521b233667ab
hex11c206881f2

1220314431986 has 32 divisors (see below), whose sum is σ = 1979445843648. Its totient is φ = 560888856000.

The previous prime is 1220314431979. The next prime is 1220314432061. The reversal of 1220314431986 is 6891344130221.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58808465 + ... + 58829211.

It is an arithmetic number, because the mean of its divisors is an integer number (61857682614).

Almost surely, 21220314431986 is an apocalyptic number.

1220314431986 is a deficient number, since it is larger than the sum of its proper divisors (759131411662).

1220314431986 is a wasteful number, since it uses less digits than its factorization.

1220314431986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30026.

The product of its (nonzero) digits is 248832, while the sum is 44.

The spelling of 1220314431986 in words is "one trillion, two hundred twenty billion, three hundred fourteen million, four hundred thirty-one thousand, nine hundred eighty-six".

Divisors: 1 2 13 26 251 502 3263 6526 9013 18026 20747 41494 117169 234338 269711 539422 2262263 4524526 5207497 10414994 29409419 58818838 67697461 135394922 186992711 373985422 2430905243 4861810486 46935170461 93870340922 610157215993 1220314431986