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20550255354 = 2328319077213
BaseRepresentation
bin10011001000111001…
…000000001011111010
31222001011221010200200
4103020321000023322
5314041331132404
613235103143030
71325153200626
oct231071001372
958034833620
1020550255354
1187960a1012
123b962a4a76
131c266a7415
14dcd400186
1580420e839
hex4c8e402fa

20550255354 has 48 divisors (see below), whose sum is σ = 45091886112. Its totient is φ = 6763067424.

The previous prime is 20550255347. The next prime is 20550255403. The reversal of 20550255354 is 45355205502.

20550255354 is a `hidden beast` number, since 2 + 0 + 5 + 50 + 2 + 553 + 54 = 666.

It is a super-2 number, since 2×205502553542 (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2845452 + ... + 2852664.

It is an arithmetic number, because the mean of its divisors is an integer number (939414294).

Almost surely, 220550255354 is an apocalyptic number.

20550255354 is an abundant number, since it is smaller than the sum of its proper divisors (24541630758).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20550255354 is a wasteful number, since it uses less digits than its factorization.

20550255354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9211 (or 9208 counting only the distinct ones).

The product of its (nonzero) digits is 150000, while the sum is 36.

The spelling of 20550255354 in words is "twenty billion, five hundred fifty million, two hundred fifty-five thousand, three hundred fifty-four".

Divisors: 1 2 3 6 9 18 83 166 249 498 747 1494 1907 3814 5721 7213 11442 14426 17163 21639 34326 43278 64917 129834 158281 316562 474843 598679 949686 1197358 1424529 1796037 2849058 3592074 5388111 10776222 13755191 27510382 41265573 82531146 123796719 247593438 1141680853 2283361706 3425042559 6850085118 10275127677 20550255354