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300693389 = 1931155719
BaseRepresentation
bin10001111011000…
…011011110001101
3202221210210210012
4101323003132031
51103434142024
645500523005
710310565053
oct2173033615
9687723705
10300693389
11144808437
1284850465
134a3b15a9
142bd141d3
151b5e950e
hex11ec378d

300693389 has 4 divisors (see below), whose sum is σ = 300851040. Its totient is φ = 300535740.

The previous prime is 300693383. The next prime is 300693391. The reversal of 300693389 is 983396003.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 983396003 = 2933910207.

It is a cyclic number.

It is not a de Polignac number, because 300693389 - 212 = 300689293 is a prime.

It is a super-3 number, since 3×3006933893 (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (300693383) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75929 + ... + 79790.

It is an arithmetic number, because the mean of its divisors is an integer number (75212760).

Almost surely, 2300693389 is an apocalyptic number.

It is an amenable number.

300693389 is a deficient number, since it is larger than the sum of its proper divisors (157651).

300693389 is a wasteful number, since it uses less digits than its factorization.

300693389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157650.

The product of its (nonzero) digits is 104976, while the sum is 41.

The square root of 300693389 is about 17340.5129393568. The cubic root of 300693389 is about 669.9483059545.

The spelling of 300693389 in words is "three hundred million, six hundred ninety-three thousand, three hundred eighty-nine".

Divisors: 1 1931 155719 300693389