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1302021230 = 25130202123
BaseRepresentation
bin100110110011011…
…0100010001101110
310100201222112100112
41031212310101232
510131304134410
6333110500022
744156666156
oct11546642156
93321875315
101302021230
11608a58904
12304064612
13179994c83
14c4cc9766
157948e105
hex4d9b446e

1302021230 has 8 divisors (see below), whose sum is σ = 2343638232. Its totient is φ = 520808488.

The previous prime is 1302021229. The next prime is 1302021233. The reversal of 1302021230 is 321202031.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1302021233) 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, 65101052 + ... + 65101071.

It is an arithmetic number, because the mean of its divisors is an integer number (292954779).

Almost surely, 21302021230 is an apocalyptic number.

1302021230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1302021230 is a deficient number, since it is larger than the sum of its proper divisors (1041617002).

1302021230 is a wasteful number, since it uses less digits than its factorization.

1302021230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130202130.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 1302021230 is about 36083.5312850613. The cubic root of 1302021230 is about 1091.9582199215.

Adding to 1302021230 its reverse (321202031), we get a palindrome (1623223261).

The spelling of 1302021230 in words is "one billion, three hundred two million, twenty-one thousand, two hundred thirty".

Divisors: 1 2 5 10 130202123 260404246 651010615 1302021230