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28756745350 = 252575134907
BaseRepresentation
bin11010110010000010…
…010001110010000110
32202020002220000121121
4122302002101302012
5432343211322400
621113300504154
72035422205504
oct326202216206
982202800547
1028756745350
1111217484453
1256a66ab05a
132933937868
14156b299674
15b348e721a
hex6b2091c86

28756745350 has 12 divisors (see below), whose sum is σ = 53487546444. Its totient is φ = 11502698120.

The previous prime is 28756745293. The next prime is 28756745377. The reversal of 28756745350 is 5354765782.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 287567404 + ... + 287567503.

It is an arithmetic number, because the mean of its divisors is an integer number (4457295537).

Almost surely, 228756745350 is an apocalyptic number.

28756745350 is a deficient number, since it is larger than the sum of its proper divisors (24730801094).

28756745350 is a wasteful number, since it uses less digits than its factorization.

28756745350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 575134919 (or 575134914 counting only the distinct ones).

The product of its (nonzero) digits is 7056000, while the sum is 52.

The spelling of 28756745350 in words is "twenty-eight billion, seven hundred fifty-six million, seven hundred forty-five thousand, three hundred fifty".

Divisors: 1 2 5 10 25 50 575134907 1150269814 2875674535 5751349070 14378372675 28756745350