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930997189 = 6183918191
BaseRepresentation
bin110111011111011…
…110001111000101
32101212211120001101
4313133132033011
53401313402224
6232214300101
732033226343
oct6737361705
92355746041
10930997189
11438583a71
1221b957631
1311ab5a515
148b908993
1556b01044
hex377de3c5

930997189 has 8 divisors (see below), whose sum is σ = 947439360. Its totient is φ = 914593200.

The previous prime is 930997187. The next prime is 930997247. The reversal of 930997189 is 981799039.

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 930997189 - 21 = 930997187 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 (930997181) 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, 42084 + ... + 60274.

It is an arithmetic number, because the mean of its divisors is an integer number (118429920).

Almost surely, 2930997189 is an apocalyptic number.

It is an amenable number.

930997189 is a deficient number, since it is larger than the sum of its proper divisors (16442171).

930997189 is a wasteful number, since it uses less digits than its factorization.

930997189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19091.

The product of its (nonzero) digits is 1102248, while the sum is 55.

The square root of 930997189 is about 30512.2465413480. The cubic root of 930997189 is about 976.4487562367.

The spelling of 930997189 in words is "nine hundred thirty million, nine hundred ninety-seven thousand, one hundred eighty-nine".

Divisors: 1 61 839 18191 51179 1109651 15262249 930997189