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20058030 = 234524763
BaseRepresentation
bin100110010000…
…0111110101110
31101202001110000
41030200332232
520113324110
61553525130
7332330136
oct114407656
941661400
1020058030
111035a993
1268737a6
134203975
142941ac6
151b631c0
hex1320fae

20058030 has 40 divisors (see below), whose sum is σ = 53935992. Its totient is φ = 5348592.

The previous prime is 20058013. The next prime is 20058043. The reversal of 20058030 is 3085002.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20057994 and 20058012.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 11572 + ... + 13191.

Almost surely, 220058030 is an apocalyptic number.

20058030 is an abundant number, since it is smaller than the sum of its proper divisors (33877962).

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

20058030 is a wasteful number, since it uses less digits than its factorization.

20058030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24782 (or 24773 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 20058030 is about 4478.6192068538. The cubic root of 20058030 is about 271.7040375821.

The spelling of 20058030 in words is "twenty million, fifty-eight thousand, thirty".

Divisors: 1 2 3 5 6 9 10 15 18 27 30 45 54 81 90 135 162 270 405 810 24763 49526 74289 123815 148578 222867 247630 371445 445734 668601 742890 1114335 1337202 2005803 2228670 3343005 4011606 6686010 10029015 20058030