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20234270 = 257793659
BaseRepresentation
bin100110100110…
…0000000011110
31102002000012102
41031030000132
520134444040
62001405102
7333663020
oct115140036
942060172
1020234270
1110470341
126939792
134265c54
14298a010
151b9a515
hex134c01e

20234270 has 32 divisors (see below), whose sum is σ = 42163200. Its totient is φ = 6847776.

The previous prime is 20234251. The next prime is 20234281. The reversal of 20234270 is 7243202.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3701 + ... + 7359.

It is an arithmetic number, because the mean of its divisors is an integer number (1317600).

Almost surely, 220234270 is an apocalyptic number.

20234270 is an abundant number, since it is smaller than the sum of its proper divisors (21928930).

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

20234270 is a wasteful number, since it uses less digits than its factorization.

20234270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3752.

The product of its (nonzero) digits is 672, while the sum is 20.

The square root of 20234270 is about 4498.2518826762. The cubic root of 20234270 is about 272.4974945762.

Adding to 20234270 its reverse (7243202), we get a palindrome (27477472).

The spelling of 20234270 in words is "twenty million, two hundred thirty-four thousand, two hundred seventy".

Divisors: 1 2 5 7 10 14 35 70 79 158 395 553 790 1106 2765 3659 5530 7318 18295 25613 36590 51226 128065 256130 289061 578122 1445305 2023427 2890610 4046854 10117135 20234270