Search a number
-
+
1220410233 = 3472152399
BaseRepresentation
bin100100010111101…
…1111101101111001
310011001102021010000
41020233133231321
54444411111413
6321033343213
742146213220
oct11057375571
93131367100
101220410233
115769872a9
122a0867b09
13165abc543
14b8123cb7
157221d073
hex48bdfb79

1220410233 has 20 divisors (see below), whose sum is σ = 2083523200. Its totient is φ = 697376952.

The previous prime is 1220410231. The next prime is 1220410271. The reversal of 1220410233 is 3320140221.

1220410233 is a `hidden beast` number, since 1 + 2 + 20 + 410 + 233 = 666.

It is not a de Polignac number, because 1220410233 - 21 = 1220410231 is a prime.

It is a super-2 number, since 2×12204102332 = 2978802273622228578, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1220410231) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1075633 + ... + 1076766.

It is an arithmetic number, because the mean of its divisors is an integer number (104176160).

Almost surely, 21220410233 is an apocalyptic number.

It is an amenable number.

1220410233 is a deficient number, since it is larger than the sum of its proper divisors (863112967).

1220410233 is an equidigital number, since it uses as much as digits as its factorization.

1220410233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2152418 (or 2152409 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 1220410233 is about 34934.3703678770. The cubic root of 1220410233 is about 1068.6494834368.

Adding to 1220410233 its reverse (3320140221), we get a palindrome (4540550454).

The spelling of 1220410233 in words is "one billion, two hundred twenty million, four hundred ten thousand, two hundred thirty-three".

Divisors: 1 3 7 9 21 27 63 81 189 567 2152399 6457197 15066793 19371591 45200379 58114773 135601137 174344319 406803411 1220410233