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1021202093 = 23312575573
BaseRepresentation
bin111100110111100…
…100111010101101
32122011120102220202
4330313210322231
54042411431333
6245155523245
734210034402
oct7467447255
92564512822
101021202093
1148449527a
12245bb9525
131337517c2
14998aa2a9
155e9bd5e8
hex3cde4ead

1021202093 has 16 divisors (see below), whose sum is σ = 1104454656. Its totient is φ = 941445120.

The previous prime is 1021202081. The next prime is 1021202113. The reversal of 1021202093 is 3902021201.

It is a cyclic number.

It is not a de Polignac number, because 1021202093 - 226 = 954093229 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 (1021202593) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 180455 + ... + 186027.

It is an arithmetic number, because the mean of its divisors is an integer number (69028416).

Almost surely, 21021202093 is an apocalyptic number.

It is an amenable number.

1021202093 is a deficient number, since it is larger than the sum of its proper divisors (83252563).

1021202093 is a wasteful number, since it uses less digits than its factorization.

1021202093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5884.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 1021202093 is about 31956.2527997261. The cubic root of 1021202093 is about 1007.0179968363.

Adding to 1021202093 its reverse (3902021201), we get a palindrome (4923223294).

The spelling of 1021202093 in words is "one billion, twenty-one million, two hundred two thousand, ninety-three".

Divisors: 1 23 31 257 713 5573 5911 7967 128179 172763 183241 1432261 3973549 32942003 44400091 1021202093