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10642531693 = 192311242377
BaseRepresentation
bin10011110100101100…
…00010010101101101
31000110200210121220111
421322112002111231
5133243442003233
64520014220021
7524506012123
oct117226022555
930420717814
1010642531693
114571482642
1220901b4611
131007b58041
1472d61b913
154244ccacd
hex27a58256d

10642531693 has 8 divisors (see below), whose sum is σ = 11207558720. Its totient is φ = 10077994080.

The previous prime is 10642531657. The next prime is 10642531699. The reversal of 10642531693 is 39613524601.

10642531693 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 10642531693 - 225 = 10608977261 is a prime.

It is a super-2 number, since 2×106425316932 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10642531699) 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, 77280 + ... + 165097.

It is an arithmetic number, because the mean of its divisors is an integer number (1400944840).

Almost surely, 210642531693 is an apocalyptic number.

It is an amenable number.

10642531693 is a deficient number, since it is larger than the sum of its proper divisors (565027027).

10642531693 is a wasteful number, since it uses less digits than its factorization.

10642531693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244707.

The product of its (nonzero) digits is 116640, while the sum is 40.

The spelling of 10642531693 in words is "ten billion, six hundred forty-two million, five hundred thirty-one thousand, six hundred ninety-three".

Divisors: 1 19 2311 43909 242377 4605163 560133247 10642531693