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2891163230 = 253167139199
BaseRepresentation
bin1010110001010011…
…1010011001011110
321110111020022100122
42230110322121132
521410114210410
61154515354542
7131434324214
oct25424723136
97414208318
102891163230
111253a937aa
126882b2a52
13370c98797
141d5d94cb4
1511dc45e55
hexac53a65e

2891163230 has 32 divisors (see below), whose sum is σ = 5452185600. Its totient is φ = 1102448160.

The previous prime is 2891163193. The next prime is 2891163241. The reversal of 2891163230 is 323611982.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48830 + ... + 90369.

It is an arithmetic number, because the mean of its divisors is an integer number (170380800).

Almost surely, 22891163230 is an apocalyptic number.

2891163230 is a deficient number, since it is larger than the sum of its proper divisors (2561022370).

2891163230 is a wasteful number, since it uses less digits than its factorization.

2891163230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139304.

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 2891163230 is about 53769.5381233650. The cubic root of 2891163230 is about 1424.5932118855.

The spelling of 2891163230 in words is "two billion, eight hundred ninety-one million, one hundred sixty-three thousand, two hundred thirty".

Divisors: 1 2 5 10 31 62 67 134 155 310 335 670 2077 4154 10385 20770 139199 278398 695995 1391990 4315169 8630338 9326333 18652666 21575845 43151690 46631665 93263330 289116323 578232646 1445581615 2891163230