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1022149101 = 3340716367
BaseRepresentation
bin111100111011001…
…100000111101101
32122020100112222010
4330323030013231
54043132232401
6245232111433
734221060351
oct7473140755
92566315863
101022149101
11484a81826
12246395579
131339c386c
1499a75461
155eb08ed6
hex3cecc1ed

1022149101 has 4 divisors (see below), whose sum is σ = 1362865472. Its totient is φ = 681432732.

The previous prime is 1022149097. The next prime is 1022149103. The reversal of 1022149101 is 1019412201.

It is a happy number.

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: 1019412201 = 3339804067.

It is not a de Polignac number, because 1022149101 - 22 = 1022149097 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022149103) 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, 170358181 + ... + 170358186.

It is an arithmetic number, because the mean of its divisors is an integer number (340716368).

Almost surely, 21022149101 is an apocalyptic number.

It is an amenable number.

1022149101 is a deficient number, since it is larger than the sum of its proper divisors (340716371).

1022149101 is an equidigital number, since it uses as much as digits as its factorization.

1022149101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340716370.

The product of its (nonzero) digits is 144, while the sum is 21.

The square root of 1022149101 is about 31971.0666228076. The cubic root of 1022149101 is about 1007.3291854731.

The spelling of 1022149101 in words is "one billion, twenty-two million, one hundred forty-nine thousand, one hundred one".

Divisors: 1 3 340716367 1022149101