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1028147898 = 23414179463
BaseRepresentation
bin111101010010000…
…100101010111010
32122122122022202210
4331102010222322
54101201213043
6250004435550
734323053511
oct7522045272
92578568683
101028147898
114883a9808
122483a8bb6
1313501414b
149a797678
15603e1633
hex3d484aba

1028147898 has 16 divisors (see below), whose sum is σ = 2106449856. Its totient is φ = 334356960.

The previous prime is 1028147849. The next prime is 1028147899. The reversal of 1028147898 is 8987418201.

1028147898 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (1028147899) 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, 2089486 + ... + 2089977.

It is an arithmetic number, because the mean of its divisors is an integer number (131653116).

Almost surely, 21028147898 is an apocalyptic number.

1028147898 is an abundant number, since it is smaller than the sum of its proper divisors (1078301958).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1028147898 is a wasteful number, since it uses less digits than its factorization.

1028147898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4179509.

The product of its (nonzero) digits is 258048, while the sum is 48.

The square root of 1028147898 is about 32064.7454067548. The cubic root of 1028147898 is about 1009.2959502075.

The spelling of 1028147898 in words is "one billion, twenty-eight million, one hundred forty-seven thousand, eight hundred ninety-eight".

Divisors: 1 2 3 6 41 82 123 246 4179463 8358926 12538389 25076778 171357983 342715966 514073949 1028147898