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20468626376 = 23111487156421
BaseRepresentation
bin10011000100000001…
…100111001111001000
31221211111022221210012
4103010001213033020
5313404432021001
613223025411052
71323142311362
oct230401471710
957744287705
1020468626376
118754007a50
123b72a99a88
131c127c6753
14dc2631d32
157ebe882bb
hex4c40673c8

20468626376 has 32 divisors (see below), whose sum is σ = 41896068480. Its totient is φ = 9297604800.

The previous prime is 20468626369. The next prime is 20468626379. The reversal of 20468626376 is 67362686402.

It is not an unprimeable number, because it can be changed into a prime (20468626379) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52646 + ... + 209066.

It is an arithmetic number, because the mean of its divisors is an integer number (1309252140).

Almost surely, 220468626376 is an apocalyptic number.

It is an amenable number.

20468626376 is an abundant number, since it is smaller than the sum of its proper divisors (21427442104).

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

20468626376 is a wasteful number, since it uses less digits than its factorization.

20468626376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157925 (or 157921 counting only the distinct ones).

The product of its (nonzero) digits is 3483648, while the sum is 50.

The spelling of 20468626376 in words is "twenty billion, four hundred sixty-eight million, six hundred twenty-six thousand, three hundred seventy-six".

Divisors: 1 2 4 8 11 22 44 88 1487 2974 5948 11896 16357 32714 65428 130856 156421 312842 625684 1251368 1720631 3441262 6882524 13765048 232598027 465196054 930392108 1860784216 2558578297 5117156594 10234313188 20468626376