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1041020245 = 51712247297
BaseRepresentation
bin111110000011001…
…011010101010101
32200112212022022101
4332003023111111
54113000121440
6251144402101
734540345306
oct7603132525
92615768271
101041020245
114946a0a11
12250776331
131378a0215
149c3887ad
15615d569a
hex3e0cb555

1041020245 has 8 divisors (see below), whose sum is σ = 1322708184. Its totient is φ = 783826944.

The previous prime is 1041020243. The next prime is 1041020261. The reversal of 1041020245 is 5420201401.

It can be written as a sum of positive squares in 4 ways, for example, as 553096324 + 487923921 = 23518^2 + 22089^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1041020245 - 21 = 1041020243 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1041020243) 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, 6123564 + ... + 6123733.

It is an arithmetic number, because the mean of its divisors is an integer number (165338523).

Almost surely, 21041020245 is an apocalyptic number.

It is an amenable number.

1041020245 is a deficient number, since it is larger than the sum of its proper divisors (281687939).

1041020245 is a wasteful number, since it uses less digits than its factorization.

1041020245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12247319.

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 1041020245 is about 32264.8453428805. The cubic root of 1041020245 is about 1013.4906002907.

Adding to 1041020245 its reverse (5420201401), we get a palindrome (6461221646).

The spelling of 1041020245 in words is "one billion, forty-one million, twenty thousand, two hundred forty-five".

Divisors: 1 5 17 85 12247297 61236485 208204049 1041020245