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20011332308 = 22116126328349
BaseRepresentation
bin10010101000110001…
…001011001011010100
31220122121212000020212
4102220301023023110
5311440400113213
613105412144552
71305620342462
oct225061131324
956577760225
1020011332308
11853996a170
123a65908158
131b6bb44a46
14d7b9d5832
157c1c589a8
hex4a8c4b2d4

20011332308 has 48 divisors (see below), whose sum is σ = 38978755200. Its totient is φ = 8912611200.

The previous prime is 20011332301. The next prime is 20011332331. The reversal of 20011332308 is 80323311002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20011332301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 691718 + ... + 720066.

It is an arithmetic number, because the mean of its divisors is an integer number (812057400).

Almost surely, 220011332308 is an apocalyptic number.

It is an amenable number.

20011332308 is a deficient number, since it is larger than the sum of its proper divisors (18967422892).

20011332308 is a wasteful number, since it uses less digits than its factorization.

20011332308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28688 (or 28686 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

The spelling of 20011332308 in words is "twenty billion, eleven million, three hundred thirty-two thousand, three hundred eight".

Divisors: 1 2 4 11 22 44 61 122 244 263 526 671 1052 1342 2684 2893 5786 11572 16043 28349 32086 56698 64172 113396 176473 311839 352946 623678 705892 1247356 1729289 3458578 6917156 7455787 14911574 19022179 29823148 38044358 76088716 82013657 164027314 328054628 454803007 909606014 1819212028 5002833077 10005666154 20011332308