Search a number
-
+
1223400130 = 252347113173
BaseRepresentation
bin100100011101011…
…1001101011000010
310011021001011110221
41020322321223002
510001142301010
6321221413254
742213505141
oct11072715302
93137034427
101223400130
11578639697
122a186a22a
131665c8404
14b86a1758
157260ddda
hex48eb9ac2

1223400130 has 32 divisors (see below), whose sum is σ = 2346776064. Its totient is φ = 458120256.

The previous prime is 1223400103. The next prime is 1223400133. The reversal of 1223400130 is 310043221.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1223400133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45777 + ... + 67396.

It is an arithmetic number, because the mean of its divisors is an integer number (73336752).

Almost surely, 21223400130 is an apocalyptic number.

1223400130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1223400130 is a deficient number, since it is larger than the sum of its proper divisors (1123375934).

1223400130 is a wasteful number, since it uses less digits than its factorization.

1223400130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113250.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 1223400130 is about 34977.1372470647. The cubic root of 1223400130 is about 1069.5214705944.

Adding to 1223400130 its reverse (310043221), we get a palindrome (1533443351).

The spelling of 1223400130 in words is "one billion, two hundred twenty-three million, four hundred thousand, one hundred thirty".

Divisors: 1 2 5 10 23 46 47 94 115 230 235 470 1081 2162 5405 10810 113173 226346 565865 1131730 2602979 5205958 5319131 10638262 13014895 26029790 26595655 53191310 122340013 244680026 611700065 1223400130