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20302670328 = 2331375961483
BaseRepresentation
bin10010111010001000…
…100010100111111000
31221101221001111212220
4102322020202213320
5313034440422303
613154340404040
71316055564453
oct227210424770
957357044786
1020302670328
118679367796
123b273a6620
131bb72cbcc5
14da859249a
157dc606053
hex4ba2229f8

20302670328 has 32 divisors (see below), whose sum is σ = 50761190400. Its totient is φ = 6766954848.

The previous prime is 20302670327. The next prime is 20302670371. The reversal of 20302670328 is 82307620302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20302670327) 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, 299475 + ... + 360957.

It is an arithmetic number, because the mean of its divisors is an integer number (1586287200).

Almost surely, 220302670328 is an apocalyptic number.

It is an amenable number.

20302670328 is an abundant number, since it is smaller than the sum of its proper divisors (30458520072).

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

20302670328 is a wasteful number, since it uses less digits than its factorization.

20302670328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75251 (or 75247 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 33.

The spelling of 20302670328 in words is "twenty billion, three hundred two million, six hundred seventy thousand, three hundred twenty-eight".

Divisors: 1 2 3 4 6 8 12 24 13759 27518 41277 55036 61483 82554 110072 122966 165108 184449 245932 330216 368898 491864 737796 1475592 845944597 1691889194 2537833791 3383778388 5075667582 6767556776 10151335164 20302670328