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1648387292131 = 8342734647809
BaseRepresentation
bin10111111111001011100…
…010011111101111100011
312211120202221111121022001
4113333023202133233203
5204001344121322011
63301131512224431
7230043400541416
oct27771342375743
95746687447261
101648387292131
11586093720218
1222757569b117
13bc599830a48
1459ad4b79b7d
152cd295b97c1
hex17fcb89fbe3

1648387292131 has 8 divisors (see below), whose sum is σ = 1668638154960. Its totient is φ = 1628145733632.

The previous prime is 1648387292047. The next prime is 1648387292143. The reversal of 1648387292131 is 1312927838461.

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 1648387292131 - 29 = 1648387291619 is a prime.

It is a super-3 number, since 3×16483872921313 (a number of 38 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1648387292191) 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, 1969246 + ... + 2678563.

It is an arithmetic number, because the mean of its divisors is an integer number (208579769370).

Almost surely, 21648387292131 is an apocalyptic number.

1648387292131 is a deficient number, since it is larger than the sum of its proper divisors (20250862829).

1648387292131 is an equidigital number, since it uses as much as digits as its factorization.

1648387292131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4652165.

The product of its digits is 3483648, while the sum is 55.

The spelling of 1648387292131 in words is "one trillion, six hundred forty-eight billion, three hundred eighty-seven million, two hundred ninety-two thousand, one hundred thirty-one".

Divisors: 1 83 4273 354659 4647809 385768147 19860087857 1648387292131