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28949127160 = 235723728179
BaseRepresentation
bin11010111101100000…
…001001111111111000
32202201111220000211211
4122331200021333320
5433241434032120
621144332132504
72043246343432
oct327540117770
982644800754
1028949127160
1111306033788
12573b007134
132964755455
141588a57652
15b4674925a
hex6bd809ff8

28949127160 has 16 divisors (see below), whose sum is σ = 65135536200. Its totient is φ = 11579650848.

The previous prime is 28949127157. The next prime is 28949127197. The reversal of 28949127160 is 6172194982.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 361864050 + ... + 361864129.

Almost surely, 228949127160 is an apocalyptic number.

28949127160 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28949127160 is an abundant number, since it is smaller than the sum of its proper divisors (36186409040).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28949127160 is a wasteful number, since it uses less digits than its factorization.

28949127160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 723728190 (or 723728186 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 49.

The spelling of 28949127160 in words is "twenty-eight billion, nine hundred forty-nine million, one hundred twenty-seven thousand, one hundred sixty".

Divisors: 1 2 4 5 8 10 20 40 723728179 1447456358 2894912716 3618640895 5789825432 7237281790 14474563580 28949127160