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389250002 = 21009192889
BaseRepresentation
bin10111001100110…
…111101111010010
31000010102221121202
4113030313233102
51244122000002
6102342551202
712434366441
oct2714675722
91003387552
10389250002
1118a7a3319
12aa438502
136284955b
14399a6d58
152428d502
hex17337bd2

389250002 has 8 divisors (see below), whose sum is σ = 584456700. Its totient is φ = 194431104.

The previous prime is 389249989. The next prime is 389250007. The reversal of 389250002 is 200052983.

It can be written as a sum of positive squares in 2 ways, for example, as 379509361 + 9740641 = 19481^2 + 3121^2 .

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

It is not an unprimeable number, because it can be changed into a prime (389250007) 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, 94427 + ... + 98462.

Almost surely, 2389250002 is an apocalyptic number.

389250002 is a deficient number, since it is larger than the sum of its proper divisors (195206698).

389250002 is a wasteful number, since it uses less digits than its factorization.

389250002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193900.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 389250002 is about 19729.4197076346. The cubic root of 389250002 is about 730.1457155793.

The spelling of 389250002 in words is "three hundred eighty-nine million, two hundred fifty thousand, two".

Divisors: 1 2 1009 2018 192889 385778 194625001 389250002