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20894308414 = 277121020431
BaseRepresentation
bin10011011101011001…
…011101100000111110
31222221011022211202121
4103131121131200332
5320242420332124
613333153313154
71336531456030
oct233531354076
958834284677
1020894308414
118952324191
1240715657ba
131c7ca5a805
141022d9dc50
158245212e4
hex4dd65d83e

20894308414 has 16 divisors (see below), whose sum is σ = 36323306496. Its totient is φ = 8828580600.

The previous prime is 20894308411. The next prime is 20894308423. The reversal of 20894308414 is 41480349802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20894308411) 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, 10509222 + ... + 10511209.

It is an arithmetic number, because the mean of its divisors is an integer number (2270206656).

Almost surely, 220894308414 is an apocalyptic number.

20894308414 is a deficient number, since it is larger than the sum of its proper divisors (15428998082).

20894308414 is a wasteful number, since it uses less digits than its factorization.

20894308414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21020511.

The product of its (nonzero) digits is 221184, while the sum is 43.

The spelling of 20894308414 in words is "twenty billion, eight hundred ninety-four million, three hundred eight thousand, four hundred fourteen".

Divisors: 1 2 7 14 71 142 497 994 21020431 42040862 147143017 294286034 1492450601 2984901202 10447154207 20894308414