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10302132440 = 235257553311
BaseRepresentation
bin10011001100000111…
…00001000011011000
3222120222021112220202
421212003201003120
5132044321214230
64422134241332
7513203452355
oct114603410330
928528245822
1010302132440
114407315646
121bb61b6248
13c82483a72
146da32d62c
1540468da45
hex2660e10d8

10302132440 has 16 divisors (see below), whose sum is σ = 23179798080. Its totient is φ = 4120852960.

The previous prime is 10302132419. The next prime is 10302132487. The reversal of 10302132440 is 4423120301.

It is a super-3 number, since 3×103021324403 (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 128776616 + ... + 128776695.

It is an arithmetic number, because the mean of its divisors is an integer number (1448737380).

Almost surely, 210302132440 is an apocalyptic number.

10302132440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10302132440 is an abundant number, since it is smaller than the sum of its proper divisors (12877665640).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10302132440 is a wasteful number, since it uses less digits than its factorization.

10302132440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257553322 (or 257553318 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 10302132440 its reverse (4423120301), we get a palindrome (14725252741).

The spelling of 10302132440 in words is "ten billion, three hundred two million, one hundred thirty-two thousand, four hundred forty".

Divisors: 1 2 4 5 8 10 20 40 257553311 515106622 1030213244 1287766555 2060426488 2575533110 5151066220 10302132440