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10491048641 = 331206915319
BaseRepresentation
bin10011100010101000…
…01011001011000001
31000002010202111020002
421301110023023001
5132441202024031
64453003325345
7520656304433
oct116124131301
930063674202
1010491048641
1144a3a18137
122049520855
13cb265a0b8
14717468653
15416058ccb
hex27150b2c1

10491048641 has 8 divisors (see below), whose sum is σ = 10528516800. Its totient is φ = 10453615920.

The previous prime is 10491048637. The next prime is 10491048643. The reversal of 10491048641 is 14684019401.

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 10491048641 - 22 = 10491048637 is a prime.

It is a super-2 number, since 2×104910486412 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10491048595 and 10491048604.

It is not an unprimeable number, because it can be changed into a prime (10491048643) 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, 677180 + ... + 692498.

It is an arithmetic number, because the mean of its divisors is an integer number (1316064600).

Almost surely, 210491048641 is an apocalyptic number.

It is an amenable number.

10491048641 is a deficient number, since it is larger than the sum of its proper divisors (37468159).

10491048641 is a wasteful number, since it uses less digits than its factorization.

10491048641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17719.

The product of its (nonzero) digits is 27648, while the sum is 38.

The spelling of 10491048641 in words is "ten billion, four hundred ninety-one million, forty-eight thousand, six hundred forty-one".

Divisors: 1 331 2069 15319 684839 5070589 31695011 10491048641