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20023426654 = 2711130022251
BaseRepresentation
bin10010101001011111…
…010011111001011110
31220200110121110120121
4102221133103321132
5312001444123104
613110523305154
71306125214120
oct225137237136
956613543517
1020023426654
11854577a8a0
123a6997b1ba
131b714ba96a
14d7d463210
157c2d47254
hex4a97d3e5e

20023426654 has 16 divisors (see below), whose sum is σ = 37446408576. Its totient is φ = 7801335000.

The previous prime is 20023426639. The next prime is 20023426711. The reversal of 20023426654 is 45662432002.

It is a super-2 number, since 2×200234266542 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65010972 + ... + 65011279.

It is an arithmetic number, because the mean of its divisors is an integer number (2340400536).

Almost surely, 220023426654 is an apocalyptic number.

20023426654 is a deficient number, since it is larger than the sum of its proper divisors (17422981922).

20023426654 is a wasteful number, since it uses less digits than its factorization.

20023426654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130022271.

The product of its (nonzero) digits is 69120, while the sum is 34.

Adding to 20023426654 its reverse (45662432002), we get a palindrome (65685858656).

The spelling of 20023426654 in words is "twenty billion, twenty-three million, four hundred twenty-six thousand, six hundred fifty-four".

Divisors: 1 2 7 11 14 22 77 154 130022251 260044502 910155757 1430244761 1820311514 2860489522 10011713327 20023426654