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293019380 = 22514650969
BaseRepresentation
bin10001011101110…
…001111011110100
3202102100221000122
4101131301323310
51100003110010
645024231112
710155423623
oct2135617364
9672327018
10293019380
11140446885
128216b498
1348925664
142acb76ba
151aad0855
hex11771ef4

293019380 has 12 divisors (see below), whose sum is σ = 615340740. Its totient is φ = 117207744.

The previous prime is 293019371. The next prime is 293019383. The reversal of 293019380 is 83910392.

It can be written as a sum of positive squares in 2 ways, for example, as 30514576 + 262504804 = 5524^2 + 16202^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 293019380.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (293019383) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 7325465 + ... + 7325504.

It is an arithmetic number, because the mean of its divisors is an integer number (51278395).

Almost surely, 2293019380 is an apocalyptic number.

293019380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

293019380 is an abundant number, since it is smaller than the sum of its proper divisors (322321360).

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

293019380 is a wasteful number, since it uses less digits than its factorization.

293019380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14650978 (or 14650976 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 35.

The square root of 293019380 is about 17117.8088551076. The cubic root of 293019380 is about 664.1998630222.

The spelling of 293019380 in words is "two hundred ninety-three million, nineteen thousand, three hundred eighty".

Divisors: 1 2 4 5 10 20 14650969 29301938 58603876 73254845 146509690 293019380