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28140244363 = 711233223429
BaseRepresentation
bin11010001101010010…
…100000110110001011
32200122010211112020201
4122031102200312023
5430112400304423
620532155033031
72014225062520
oct321522406613
980563745221
1028140244363
1110a30486100
12555413b777
132865cb238a
14150d459147
15aea71a2ad
hex68d4a0d8b

28140244363 has 12 divisors (see below), whose sum is σ = 35349729520. Its totient is φ = 21927462480.

The previous prime is 28140244333. The next prime is 28140244397. The reversal of 28140244363 is 36344204182.

It is not a de Polignac number, because 28140244363 - 25 = 28140244331 is a prime.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (28140244333) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16610868 + ... + 16612561.

Almost surely, 228140244363 is an apocalyptic number.

28140244363 is a deficient number, since it is larger than the sum of its proper divisors (7209485157).

28140244363 is a wasteful number, since it uses less digits than its factorization.

28140244363 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33223458 (or 33223447 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 37.

The spelling of 28140244363 in words is "twenty-eight billion, one hundred forty million, two hundred forty-four thousand, three hundred sixty-three".

Divisors: 1 7 11 77 121 847 33223429 232564003 365457719 2558204033 4020034909 28140244363