Search a number
-
+
1031021230 = 25234482701
BaseRepresentation
bin111101011101000…
…010001010101110
32122212001022020111
4331131002022232
54102420134410
6250150210234
734356351541
oct7535021256
92585038214
101031021230
11489a91568
1224935397a
131357abc45
149ad04858
15607acb8a
hex3d7422ae

1031021230 has 16 divisors (see below), whose sum is σ = 1936527264. Its totient is φ = 394477600.

The previous prime is 1031021227. The next prime is 1031021237. The reversal of 1031021230 is 321201301.

It is a self number, because there is not a number n which added to its sum of digits gives 1031021230.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1031021237) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2241121 + ... + 2241580.

It is an arithmetic number, because the mean of its divisors is an integer number (121032954).

Almost surely, 21031021230 is an apocalyptic number.

1031021230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1031021230 is a deficient number, since it is larger than the sum of its proper divisors (905506034).

1031021230 is a wasteful number, since it uses less digits than its factorization.

1031021230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4482731.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 1031021230 is about 32109.5193050285. The cubic root of 1031021230 is about 1010.2352913897.

Adding to 1031021230 its reverse (321201301), we get a palindrome (1352222531).

The spelling of 1031021230 in words is "one billion, thirty-one million, twenty-one thousand, two hundred thirty".

Divisors: 1 2 5 10 23 46 115 230 4482701 8965402 22413505 44827010 103102123 206204246 515510615 1031021230