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1012252211 = 14921293191
BaseRepresentation
bin111100010101011…
…011111000110011
32121112201201222122
4330111123320303
54033114032321
6244240024455
734041000425
oct7425337063
92545651878
101012252211
1147a432083
1224300212b
13131939c09
149861a815
155dd018ab
hex3c55be33

1012252211 has 8 divisors (see below), whose sum is σ = 1019844000. Its totient is φ = 1004671360.

The previous prime is 1012252193. The next prime is 1012252217. The reversal of 1012252211 is 1122522101.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1012252211 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1012252211.

It is not an unprimeable number, because it can be changed into a prime (1012252217) 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, 315626 + ... + 318816.

It is an arithmetic number, because the mean of its divisors is an integer number (127480500).

Almost surely, 21012252211 is an apocalyptic number.

1012252211 is a deficient number, since it is larger than the sum of its proper divisors (7591789).

1012252211 is a wasteful number, since it uses less digits than its factorization.

1012252211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5469.

The product of its (nonzero) digits is 80, while the sum is 17.

The square root of 1012252211 is about 31815.9112866503. The cubic root of 1012252211 is about 1004.0675033184.

Adding to 1012252211 its reverse (1122522101), we get a palindrome (2134774312).

The spelling of 1012252211 in words is "one billion, twelve million, two hundred fifty-two thousand, two hundred eleven".

Divisors: 1 149 2129 3191 317221 475459 6793639 1012252211