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213786760990 = 25112912966721
BaseRepresentation
bin1100011100011010101…
…1110001011100011110
3202102211011111201010211
43013012223301130132
512000313402322430
6242113504123034
721305556325315
oct3070653613436
9672734451124
10213786760990
1182737064850
123552490647a
13172106b9b0a
14a4c112b27c
1558639d572a
hex31c6af171e

213786760990 has 32 divisors (see below), whose sum is σ = 419820161760. Its totient is φ = 77736806400.

The previous prime is 213786760969. The next prime is 213786761003. The reversal of 213786760990 is 99067687312.

It is a congruent number.

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, 3170830 + ... + 3237550.

It is an arithmetic number, because the mean of its divisors is an integer number (13119380055).

Almost surely, 2213786760990 is an apocalyptic number.

213786760990 is a deficient number, since it is larger than the sum of its proper divisors (206033400770).

213786760990 is a wasteful number, since it uses less digits than its factorization.

213786760990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95868.

The product of its (nonzero) digits is 6858432, while the sum is 58.

The spelling of 213786760990 in words is "two hundred thirteen billion, seven hundred eighty-six million, seven hundred sixty thousand, nine hundred ninety".

Divisors: 1 2 5 10 11 22 55 110 29129 58258 66721 133442 145645 291290 320419 333605 640838 667210 733931 1467862 1602095 3204190 3669655 7339310 1943516009 3887032018 9717580045 19435160090 21378676099 42757352198 106893380495 213786760990