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20010054 = 2317196177
BaseRepresentation
bin100110001010…
…1010001000110
31101122121122010
41030111101012
520110310204
61552515050
7332040231
oct114252106
941577563
1020010054
1110327939
12684ba86
1341b7b8c
14292c418
151b53d89
hex1315446

20010054 has 16 divisors (see below), whose sum is σ = 42374448. Its totient is φ = 6277632.

The previous prime is 20010041. The next prime is 20010061. The reversal of 20010054 is 45001002.

It is a super-2 number, since 2×200100542 = 800804522165832, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97987 + ... + 98190.

It is an arithmetic number, because the mean of its divisors is an integer number (2648403).

Almost surely, 220010054 is an apocalyptic number.

20010054 is an abundant number, since it is smaller than the sum of its proper divisors (22364394).

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

20010054 is a wasteful number, since it uses less digits than its factorization.

20010054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196199.

The product of its (nonzero) digits is 40, while the sum is 12.

The square root of 20010054 is about 4473.2598851397. The cubic root of 20010054 is about 271.4872386311.

Adding to 20010054 its reverse (45001002), we get a palindrome (65011056).

The spelling of 20010054 in words is "twenty million, ten thousand, fifty-four".

Divisors: 1 2 3 6 17 34 51 102 196177 392354 588531 1177062 3335009 6670018 10005027 20010054