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28741025492 = 2223312402451
BaseRepresentation
bin11010110001000110…
…010011111011010100
32202012000022101000122
4122301012103323110
5432330200303432
621111535531112
72035141454144
oct326106237324
982160271018
1028741025492
1111209617933
1256a1389a98
1329305c267a
141569166924
15b3333e612
hex6b1193ed4

28741025492 has 12 divisors (see below), whose sum is σ = 52483611936. Its totient is φ = 13745707800.

The previous prime is 28741025491. The next prime is 28741025569. The reversal of 28741025492 is 29452014782.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28741025491) 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, 156201134 + ... + 156201317.

It is an arithmetic number, because the mean of its divisors is an integer number (4373634328).

Almost surely, 228741025492 is an apocalyptic number.

It is an amenable number.

28741025492 is a deficient number, since it is larger than the sum of its proper divisors (23742586444).

28741025492 is a wasteful number, since it uses less digits than its factorization.

28741025492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312402478 (or 312402476 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 44.

The spelling of 28741025492 in words is "twenty-eight billion, seven hundred forty-one million, twenty-five thousand, four hundred ninety-two".

Divisors: 1 2 4 23 46 92 312402451 624804902 1249609804 7185256373 14370512746 28741025492