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3894298491 = 310712131771
BaseRepresentation
bin1110100000011110…
…0100011101111011
3101001101210212020110
43220013210131323
530433420022431
61442232155403
7165334663626
oct35007443573
911041725213
103894298491
111719259106
12908238b63
134a0a62a45
1428d2badbd
1517bd46346
hexe81e477b

3894298491 has 8 divisors (see below), whose sum is σ = 5240925504. Its totient is φ = 2571935240.

The previous prime is 3894298489. The next prime is 3894298517. The reversal of 3894298491 is 1948924983.

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 3894298491 - 21 = 3894298489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3894298451) 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, 6065565 + ... + 6066206.

It is an arithmetic number, because the mean of its divisors is an integer number (655115688).

Almost surely, 23894298491 is an apocalyptic number.

3894298491 is a deficient number, since it is larger than the sum of its proper divisors (1346627013).

3894298491 is a wasteful number, since it uses less digits than its factorization.

3894298491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12131881.

The product of its digits is 4478976, while the sum is 57.

The square root of 3894298491 is about 62404.3146825602. The cubic root of 3894298491 is about 1573.2934893324.

The spelling of 3894298491 in words is "three billion, eight hundred ninety-four million, two hundred ninety-eight thousand, four hundred ninety-one".

Divisors: 1 3 107 321 12131771 36395313 1298099497 3894298491