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28385038562833 = 419579111698277
BaseRepresentation
bin1100111010000111010000…
…01000111111011000010001
310201111120202010211112002101
412131003220020333120101
512210030024333002313
6140211523502520401
75656515500563621
oct635035010773021
9121446663745071
1028385038562833
1190540332aa467
123225263b96101
1312ab90b97c814
14701bb3a36881
1534355ee9b5dd
hex19d0e823f611

28385038562833 has 8 divisors (see below), whose sum is σ = 28457698993920. Its totient is φ = 28312401540720.

The previous prime is 28385038562831. The next prime is 28385038562849. The reversal of 28385038562833 is 33826583058382.

It is a happy number.

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 28385038562833 - 21 = 28385038562831 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28385038562831) 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, 3422710 + ... + 8275567.

It is an arithmetic number, because the mean of its divisors is an integer number (3557212374240).

Almost surely, 228385038562833 is an apocalyptic number.

It is an amenable number.

28385038562833 is a deficient number, since it is larger than the sum of its proper divisors (72660431087).

28385038562833 is a wasteful number, since it uses less digits than its factorization.

28385038562833 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11704487.

The product of its (nonzero) digits is 199065600, while the sum is 64.

The spelling of 28385038562833 in words is "twenty-eight trillion, three hundred eighty-five billion, thirty-eight million, five hundred sixty-two thousand, eight hundred thirty-three".

Divisors: 1 419 5791 2426429 11698277 4901578063 67744722107 28385038562833