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30883197 = 337278227
BaseRepresentation
bin111010111001…
…1110101111101
32011010000210010
41311303311331
530401230242
63021533433
7523334322
oct165636575
964100703
1030883197
1116484004
12a414279
136523ca7
14415cb49
152aa089c
hex1d73d7d

30883197 has 8 divisors (see below), whose sum is σ = 42290656. Its totient is φ = 20032272.

The previous prime is 30883187. The next prime is 30883199. The reversal of 30883197 is 79138803.

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

It is not a de Polignac number, because 30883197 - 214 = 30866813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30883199) 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, 139003 + ... + 139224.

It is an arithmetic number, because the mean of its divisors is an integer number (5286332).

Almost surely, 230883197 is an apocalyptic number.

30883197 is a gapful number since it is divisible by the number (37) formed by its first and last digit.

It is an amenable number.

30883197 is a deficient number, since it is larger than the sum of its proper divisors (11407459).

30883197 is a wasteful number, since it uses less digits than its factorization.

30883197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278267.

The product of its (nonzero) digits is 36288, while the sum is 39.

The square root of 30883197 is about 5557.2652447044. The cubic root of 30883197 is about 313.7430281568.

The spelling of 30883197 in words is "thirty million, eight hundred eighty-three thousand, one hundred ninety-seven".

Divisors: 1 3 37 111 278227 834681 10294399 30883197