Search a number
-
+
432180020 = 22553407717
BaseRepresentation
bin11001110000101…
…000101100110100
31010010020000112102
4121300220230310
51341114230040
6110515041232
713465320026
oct3160505464
91103200472
10432180020
11201a55278
121008a0218
136b6ca92c
1441580016
1527e1d515
hex19c28b34

432180020 has 24 divisors (see below), whose sum is σ = 924704424. Its totient is φ = 169609856.

The previous prime is 432179987. The next prime is 432180031. The reversal of 432180020 is 20081234.

It can be written as a sum of positive squares in 4 ways, for example, as 1036324 + 431143696 = 1018^2 + 20764^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 432179974 and 432180001.

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 7 ways as a sum of consecutive naturals, for example, 202799 + ... + 204918.

It is an arithmetic number, because the mean of its divisors is an integer number (38529351).

Almost surely, 2432180020 is an apocalyptic number.

It is an amenable number.

432180020 is an abundant number, since it is smaller than the sum of its proper divisors (492524404).

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

432180020 is a wasteful number, since it uses less digits than its factorization.

432180020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407779 (or 407777 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 432180020 is about 20788.9398479095. The cubic root of 432180020 is about 756.0576204414.

The spelling of 432180020 in words is "four hundred thirty-two million, one hundred eighty thousand, twenty".

Divisors: 1 2 4 5 10 20 53 106 212 265 530 1060 407717 815434 1630868 2038585 4077170 8154340 21609001 43218002 86436004 108045005 216090010 432180020