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1020102231 = 32911725313
BaseRepresentation
bin111100110011011…
…000011001010111
32122002111120012010
4330303120121113
54042121232411
6245120155303
734164503661
oct7463303127
92562446163
101020102231
114839039a5
12245768b33
13133457cb5
14996a1531
155e8527a6
hex3ccd8657

1020102231 has 8 divisors (see below), whose sum is σ = 1407037680. Its totient is φ = 656617472.

The previous prime is 1020102203. The next prime is 1020102253. The reversal of 1020102231 is 1322010201.

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 1020102231 - 27 = 1020102103 is a prime.

It is a super-2 number, since 2×10201022312 = 2081217123382354722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020102931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5862570 + ... + 5862743.

It is an arithmetic number, because the mean of its divisors is an integer number (175879710).

Almost surely, 21020102231 is an apocalyptic number.

1020102231 is a deficient number, since it is larger than the sum of its proper divisors (386935449).

1020102231 is a wasteful number, since it uses less digits than its factorization.

1020102231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11725345.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 1020102231 is about 31939.0392936294. The cubic root of 1020102231 is about 1006.6563385171.

Adding to 1020102231 its reverse (1322010201), we get a palindrome (2342112432).

The spelling of 1020102231 in words is "one billion, twenty million, one hundred two thousand, two hundred thirty-one".

Divisors: 1 3 29 87 11725313 35175939 340034077 1020102231