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28402293195 = 35523376373
BaseRepresentation
bin11010011100111010…
…001001100111001011
32201022101220222200000
4122130322021213023
5431131441340240
621014155414043
72023556336343
oct323472114713
981271828600
1028402293195
1111055399291
125607a54323
1328a8383063
14153618dd23
15b1372e430
hex69ce899cb

28402293195 has 24 divisors (see below), whose sum is σ = 51054000816. Its totient is φ = 15147889056.

The previous prime is 28402293167. The next prime is 28402293211. The reversal of 28402293195 is 59139220482.

It is not a de Polignac number, because 28402293195 - 27 = 28402293067 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 28402293195.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11686972 + ... + 11689401.

It is an arithmetic number, because the mean of its divisors is an integer number (2127250034).

Almost surely, 228402293195 is an apocalyptic number.

28402293195 is a deficient number, since it is larger than the sum of its proper divisors (22651707621).

28402293195 is an equidigital number, since it uses as much as digits as its factorization.

28402293195 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23376393 (or 23376381 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The spelling of 28402293195 in words is "twenty-eight billion, four hundred two million, two hundred ninety-three thousand, one hundred ninety-five".

Divisors: 1 3 5 9 15 27 45 81 135 243 405 1215 23376373 70129119 116881865 210387357 350645595 631162071 1051936785 1893486213 3155810355 5680458639 9467431065 28402293195