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1012212010 = 25101221201
BaseRepresentation
bin111100010101010…
…010000100101010
32121112122200211201
4330111102010222
54033111241020
6244235114414
734040442265
oct7425220452
92545580751
101012212010
1147a404957
12242ba2a0a
13131924824
1498609cdc
155dce4a0a
hex3c55212a

1012212010 has 8 divisors (see below), whose sum is σ = 1821981636. Its totient is φ = 404884800.

The previous prime is 1012211999. The next prime is 1012212017. The reversal of 1012212010 is 102122101.

It can be written as a sum of positive squares in 2 ways, for example, as 982258281 + 29953729 = 31341^2 + 5473^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (10), and also a Moran number because the ratio is a prime number: 101221201 = 1012212010 / (1 + 0 + 1 + 2 + 2 + 1 + 2 + 0 + 1 + 0).

It is not an unprimeable number, because it can be changed into a prime (1012212017) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 50610591 + ... + 50610610.

Almost surely, 21012212010 is an apocalyptic number.

1012212010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1012212010 is a deficient number, since it is larger than the sum of its proper divisors (809769626).

1012212010 is a wasteful number, since it uses less digits than its factorization.

1012212010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101221208.

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 1012212010 is about 31815.2795052943. The cubic root of 1012212010 is about 1004.0542111594.

Adding to 1012212010 its reverse (102122101), we get a palindrome (1114334111).

The spelling of 1012212010 in words is "one billion, twelve million, two hundred twelve thousand, ten".

Divisors: 1 2 5 10 101221201 202442402 506106005 1012212010