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1093930291 = 2239775021
BaseRepresentation
bin100000100110100…
…0000110100110011
32211020102102020201
41001031000310303
54220021232131
6300314420031
736052153066
oct10115006463
92736372221
101093930291
1151154a023
12266431617
1314583703c
14a53dc8dd
1566087761
hex41340d33

1093930291 has 8 divisors (see below), whose sum is σ = 1100179584. Its totient is φ = 1087693440.

The previous prime is 1093930273. The next prime is 1093930351. The reversal of 1093930291 is 1920393901.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1093930291 - 213 = 1093922099 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 1093930291.

It is not an unprimeable number, because it can be changed into a prime (1093930231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 215361 + ... + 220381.

It is an arithmetic number, because the mean of its divisors is an integer number (137522448).

Almost surely, 21093930291 is an apocalyptic number.

1093930291 is a deficient number, since it is larger than the sum of its proper divisors (6249293).

1093930291 is an equidigital number, since it uses as much as digits as its factorization.

1093930291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6221.

The product of its (nonzero) digits is 13122, while the sum is 37.

The square root of 1093930291 is about 33074.6170197026. The cubic root of 1093930291 is about 1030.3779337007.

The spelling of 1093930291 in words is "one billion, ninety-three million, nine hundred thirty thousand, two hundred ninety-one".

Divisors: 1 223 977 5021 217871 1119683 4905517 1093930291