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20058534 = 2321398017
BaseRepresentation
bin100110010000…
…1000110100110
31101202002010200
41030201012212
520113333114
61553531330
7332331456
oct114410646
941662120
1020058534
1110360301
126873b46
134203c72
142941d66
151b63409
hex13211a6

20058534 has 24 divisors (see below), whose sum is σ = 43778280. Its totient is φ = 6637248.

The previous prime is 20058497. The next prime is 20058559. The reversal of 20058534 is 43585002.

It is a junction number, because it is equal to n+sod(n) for n = 20058498 and 20058507.

It is a congruent 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, 1507 + ... + 6510.

It is an arithmetic number, because the mean of its divisors is an integer number (1824095).

Almost surely, 220058534 is an apocalyptic number.

20058534 is an abundant number, since it is smaller than the sum of its proper divisors (23719746).

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

20058534 is a wasteful number, since it uses less digits than its factorization.

20058534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8164 (or 8161 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 20058534 is about 4478.6754738427. The cubic root of 20058534 is about 271.7063132740.

The spelling of 20058534 in words is "twenty million, fifty-eight thousand, five hundred thirty-four".

Divisors: 1 2 3 6 9 18 139 278 417 834 1251 2502 8017 16034 24051 48102 72153 144306 1114363 2228726 3343089 6686178 10029267 20058534