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20055759 = 3431071453
BaseRepresentation
bin100110010000…
…0011011001111
31101201221022220
41030200123033
520113241014
61553510423
7332320413
oct114403317
941657286
1020055759
1110359209
126872413
134202919
142940d43
151b626a9
hex13206cf

20055759 has 16 divisors (see below), whose sum is σ = 27637632. Its totient is φ = 12928608.

The previous prime is 20055751. The next prime is 20055769. The reversal of 20055759 is 95755002.

It is not a de Polignac number, because 20055759 - 23 = 20055751 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20055751) 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, 13077 + ... + 14529.

It is an arithmetic number, because the mean of its divisors is an integer number (1727352).

Almost surely, 220055759 is an apocalyptic number.

20055759 is a deficient number, since it is larger than the sum of its proper divisors (7581873).

20055759 is a wasteful number, since it uses less digits than its factorization.

20055759 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1606.

The product of its (nonzero) digits is 15750, while the sum is 33.

The square root of 20055759 is about 4478.3656617119. The cubic root of 20055759 is about 271.6937829499.

The spelling of 20055759 in words is "twenty million, fifty-five thousand, seven hundred fifty-nine".

Divisors: 1 3 43 107 129 321 1453 4359 4601 13803 62479 155471 187437 466413 6685253 20055759