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28941429193 = 2937123121911
BaseRepresentation
bin11010111101000010…
…110010100111001001
32202200222101221012221
4122331002302213021
5433233001213233
621143455134041
72043124042405
oct327502624711
982628357187
1028941429193
1111301756126
125738514321
132962c8b641
141587a12105
15b45c2842d
hex6bd0b29c9

28941429193 has 16 divisors (see below), whose sum is σ = 30774965760. Its totient is φ = 27164894400.

The previous prime is 28941429169. The next prime is 28941429217. The reversal of 28941429193 is 39192414982.

It is an interprime number because it is at equal distance from previous prime (28941429169) and next prime (28941429217).

It is a cyclic number.

It is not a de Polignac number, because 28941429193 - 213 = 28941421001 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 28941429193.

It is not an unprimeable number, because it can be changed into a prime (28941423193) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1309908 + ... + 1331818.

It is an arithmetic number, because the mean of its divisors is an integer number (1923435360).

Almost surely, 228941429193 is an apocalyptic number.

It is an amenable number.

28941429193 is a deficient number, since it is larger than the sum of its proper divisors (1833536567).

28941429193 is a wasteful number, since it uses less digits than its factorization.

28941429193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23208.

The product of its digits is 1119744, while the sum is 52.

The spelling of 28941429193 in words is "twenty-eight billion, nine hundred forty-one million, four hundred twenty-nine thousand, one hundred ninety-three".

Divisors: 1 29 37 1073 1231 21911 35699 45547 635419 810707 1320863 23510503 26972441 782200789 997980317 28941429193