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389030429 = 1367284587
BaseRepresentation
bin10111001100000…
…010001000011101
31000010000210102102
4113030002020131
51244042433204
6102334134445
712432463334
oct2714021035
91003023372
10389030429
1118a663357
12aa351425
13627a0628
143994ad1b
152424841e
hex1730221d

389030429 has 4 divisors (see below), whose sum is σ = 389316384. Its totient is φ = 388744476.

The previous prime is 389030423. The next prime is 389030437. The reversal of 389030429 is 924030983.

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.

It is a cyclic number.

It is not a de Polignac number, because 389030429 - 216 = 388964893 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 389030392 and 389030401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389030423) 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, 140927 + ... + 143660.

It is an arithmetic number, because the mean of its divisors is an integer number (97329096).

Almost surely, 2389030429 is an apocalyptic number.

It is an amenable number.

389030429 is a deficient number, since it is larger than the sum of its proper divisors (285955).

389030429 is a wasteful number, since it uses less digits than its factorization.

389030429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285954.

The product of its (nonzero) digits is 46656, while the sum is 38.

The square root of 389030429 is about 19723.8543140026. The cubic root of 389030429 is about 730.0083998533.

The spelling of 389030429 in words is "three hundred eighty-nine million, thirty thousand, four hundred twenty-nine".

Divisors: 1 1367 284587 389030429