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193120270 = 2572394123
BaseRepresentation
bin10111000001011…
…00100000001110
3111110101112012121
423200230200032
5343414322040
631055123154
74533331600
oct1340544016
9443345177
10193120270
119a014132
12548134ba
1331018a65
141b911170
1511e4ac4a
hexb82c80e

193120270 has 24 divisors (see below), whose sum is σ = 404371224. Its totient is φ = 66212496.

The previous prime is 193120247. The next prime is 193120271. The reversal of 193120270 is 72021391.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (193120271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 196572 + ... + 197551.

It is an arithmetic number, because the mean of its divisors is an integer number (16848801).

Almost surely, 2193120270 is an apocalyptic number.

193120270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

193120270 is an abundant number, since it is smaller than the sum of its proper divisors (211250954).

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

193120270 is a wasteful number, since it uses less digits than its factorization.

193120270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394144 (or 394137 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 25.

The square root of 193120270 is about 13896.7719273218. The cubic root of 193120270 is about 578.0196730252.

It can be divided in two parts, 1931 and 20270, that added together give a square (22201 = 1492).

The spelling of 193120270 in words is "one hundred ninety-three million, one hundred twenty thousand, two hundred seventy".

Divisors: 1 2 5 7 10 14 35 49 70 98 245 490 394123 788246 1970615 2758861 3941230 5517722 13794305 19312027 27588610 38624054 96560135 193120270