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1012031201 = 8312193147
BaseRepresentation
bin111100010100100…
…101111011100001
32121112022111211002
4330110211323201
54033034444301
6244231201345
734036060166
oct7424457341
92545274732
101012031201
1147a2a1025
12242b16255
1313189043c
14985a006d
155dcab16b
hex3c525ee1

1012031201 has 4 divisors (see below), whose sum is σ = 1024224432. Its totient is φ = 999837972.

The previous prime is 1012031197. The next prime is 1012031221. The reversal of 1012031201 is 1021302101.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1021302101 = 7971281433.

It is a cyclic number.

It is not a de Polignac number, because 1012031201 - 22 = 1012031197 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1012031221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6096491 + ... + 6096656.

It is an arithmetic number, because the mean of its divisors is an integer number (256056108).

Almost surely, 21012031201 is an apocalyptic number.

It is an amenable number.

1012031201 is a deficient number, since it is larger than the sum of its proper divisors (12193231).

1012031201 is an equidigital number, since it uses as much as digits as its factorization.

1012031201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12193230.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 1012031201 is about 31812.4378349098. The cubic root of 1012031201 is about 1003.9944236687.

Adding to 1012031201 its reverse (1021302101), we get a palindrome (2033333302).

It can be divided in two parts, 101 and 2031201, that added together give a palindrome (2031302).

The spelling of 1012031201 in words is "one billion, twelve million, thirty-one thousand, two hundred one".

Divisors: 1 83 12193147 1012031201