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30763293 = 311932221
BaseRepresentation
bin111010101011…
…0100100011101
32010212221022020
41311112210131
530333411133
63015210353
7522324621
oct165264435
963787266
1030763293
1116401a10
12a3769b9
1364b1542
14412b181
152a7a0b3
hex1d5691d

30763293 has 8 divisors (see below), whose sum is σ = 44746656. Its totient is φ = 18644400.

The previous prime is 30763283. The next prime is 30763301. The reversal of 30763293 is 39236703.

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

It is not a de Polignac number, because 30763293 - 214 = 30746909 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 932221 = 30763293 / (3 + 0 + 7 + 6 + 3 + 2 + 9 + 3).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30763273) 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, 466078 + ... + 466143.

It is an arithmetic number, because the mean of its divisors is an integer number (5593332).

Almost surely, 230763293 is an apocalyptic number.

30763293 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

It is an amenable number.

30763293 is a deficient number, since it is larger than the sum of its proper divisors (13983363).

30763293 is a wasteful number, since it uses less digits than its factorization.

30763293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 932235.

The product of its (nonzero) digits is 20412, while the sum is 33.

The square root of 30763293 is about 5546.4667131427. The cubic root of 30763293 is about 313.3364658155.

Adding to 30763293 its reverse (39236703), we get a palindrome (69999996).

The spelling of 30763293 in words is "thirty million, seven hundred sixty-three thousand, two hundred ninety-three".

Divisors: 1 3 11 33 932221 2796663 10254431 30763293