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20152355007 = 36717451669
BaseRepresentation
bin10010110001001011…
…001000100010111111
31221000110012201000210
4102301023020202333
5312233000330012
613131410523503
71312252122411
oct226113104277
957013181023
1020152355007
11860152a654
123aa4b96593
131b9211c725
14d926249b1
157ce31323c
hex4b12c88bf

20152355007 has 4 divisors (see below), whose sum is σ = 26869806680. Its totient is φ = 13434903336.

The previous prime is 20152354951. The next prime is 20152355011. The reversal of 20152355007 is 70055325102.

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

It is not a de Polignac number, because 20152355007 - 216 = 20152289471 is a prime.

It is a super-2 number, since 2×201523550072 (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 (20152355057) 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 3 ways as a sum of consecutive naturals, for example, 3358725832 + ... + 3358725837.

It is an arithmetic number, because the mean of its divisors is an integer number (6717451670).

Almost surely, 220152355007 is an apocalyptic number.

20152355007 is a deficient number, since it is larger than the sum of its proper divisors (6717451673).

20152355007 is an equidigital number, since it uses as much as digits as its factorization.

20152355007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6717451672.

The product of its (nonzero) digits is 10500, while the sum is 30.

The spelling of 20152355007 in words is "twenty billion, one hundred fifty-two million, three hundred fifty-five thousand, seven".

Divisors: 1 3 6717451669 20152355007