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10252543001 = 56918018529
BaseRepresentation
bin10011000110001100…
…10110010000011001
3222110111222010222212
421203012112100121
5131444122334001
64413203324505
7512032114631
oct114306262031
928414863885
1010252543001
114391325338
121ba1680735
13c751104bc
146d39016c1
154001457bb
hex263196419

10252543001 has 4 divisors (see below), whose sum is σ = 10270562100. Its totient is φ = 10234523904.

The previous prime is 10252542977. The next prime is 10252543003. The reversal of 10252543001 is 10034525201.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1400555776 + 8851987225 = 37424^2 + 94085^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-10252543001 is a prime.

It is a super-2 number, since 2×102525430012 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10252543003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9008696 + ... + 9009833.

It is an arithmetic number, because the mean of its divisors is an integer number (2567640525).

Almost surely, 210252543001 is an apocalyptic number.

It is an amenable number.

10252543001 is a deficient number, since it is larger than the sum of its proper divisors (18019099).

10252543001 is an equidigital number, since it uses as much as digits as its factorization.

10252543001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18019098.

The product of its (nonzero) digits is 1200, while the sum is 23.

The spelling of 10252543001 in words is "ten billion, two hundred fifty-two million, five hundred forty-three thousand, one".

Divisors: 1 569 18018529 10252543001