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28030250499 = 331301400543
BaseRepresentation
bin11010000110101110…
…111010111000000011
32200100110212021000220
4122012232322320003
5424401221003444
620513225314123
72011421124636
oct320656727003
980313767026
1028030250499
1110984389089
125523335943
13284927ca54
1414dc9c5c1d
15ae0c3e619
hex686bbae03

28030250499 has 8 divisors (see below), whose sum is σ = 38579269632. Its totient is φ = 18084032520.

The previous prime is 28030250497. The next prime is 28030250519. The reversal of 28030250499 is 99405203082.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 28030250499 - 21 = 28030250497 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28030250499.

It is not an unprimeable number, because it can be changed into a prime (28030250491) 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, 150700179 + ... + 150700364.

It is an arithmetic number, because the mean of its divisors is an integer number (4822408704).

Almost surely, 228030250499 is an apocalyptic number.

28030250499 is a deficient number, since it is larger than the sum of its proper divisors (10549019133).

28030250499 is a wasteful number, since it uses less digits than its factorization.

28030250499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301400577.

The product of its (nonzero) digits is 155520, while the sum is 42.

The spelling of 28030250499 in words is "twenty-eight billion, thirty million, two hundred fifty thousand, four hundred ninety-nine".

Divisors: 1 3 31 93 301400543 904201629 9343416833 28030250499