Search a number
-
+
1220462030 = 251517011153
BaseRepresentation
bin100100010111110…
…1100010111001110
310011001111220011102
41020233230113032
54444414241110
6321034423102
742146520224
oct11057542716
93131456142
101220462030
11576a12207
122a0891a92
13165b09ca8
14b8138b14
157222d5a5
hex48bec5ce

1220462030 has 32 divisors (see below), whose sum is σ = 2216455488. Its totient is φ = 483840000.

The previous prime is 1220461997. The next prime is 1220462059. The reversal of 1220462030 is 302640221.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1220461993 and 1220462011.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1057934 + ... + 1059086.

It is an arithmetic number, because the mean of its divisors is an integer number (69264234).

Almost surely, 21220462030 is an apocalyptic number.

1220462030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1220462030 is a deficient number, since it is larger than the sum of its proper divisors (995993458).

1220462030 is a wasteful number, since it uses less digits than its factorization.

1220462030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2012.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 1220462030 is about 34935.1117072781. Note that the first 3 decimals coincide. The cubic root of 1220462030 is about 1068.6646018652.

The spelling of 1220462030 in words is "one billion, two hundred twenty million, four hundred sixty-two thousand, thirty".

Divisors: 1 2 5 10 151 302 701 755 1153 1402 1510 2306 3505 5765 7010 11530 105851 174103 211702 348206 529255 808253 870515 1058510 1616506 1741030 4041265 8082530 122046203 244092406 610231015 1220462030