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20288668793706 = 2323055633688759
BaseRepresentation
bin1001001110011110100101…
…11001010111101101101010
32122211120121012201121112200
410213033102321113231222
510124402143202344311
6111052252532121030
74162544061210345
oct447172271275552
978746535647480
1020288668793706
116512415678335
1223380b6166176
13b422a06b2141
14501d9651545c
15252b4c880556
hex1273d2e57b6a

20288668793706 has 24 divisors (see below), whose sum is σ = 43958938164960. Its totient is φ = 6762865631976.

The previous prime is 20288668793699. The next prime is 20288668793717. The reversal of 20288668793706 is 60739786688202.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3655755 + ... + 7344513.

It is an arithmetic number, because the mean of its divisors is an integer number (1831622423540).

Almost surely, 220288668793706 is an apocalyptic number.

20288668793706 is an abundant number, since it is smaller than the sum of its proper divisors (23670269371254).

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

20288668793706 is a wasteful number, since it uses less digits than its factorization.

20288668793706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3994330 (or 3994327 counting only the distinct ones).

The product of its (nonzero) digits is 585252864, while the sum is 72.

The spelling of 20288668793706 in words is "twenty trillion, two hundred eighty-eight billion, six hundred sixty-eight million, seven hundred ninety-three thousand, seven hundred six".

Divisors: 1 2 3 6 9 18 305563 611126 916689 1833378 2750067 3688759 5500134 7377518 11066277 22132554 33198831 66397662 1127148266317 2254296532634 3381444798951 6762889597902 10144334396853 20288668793706