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302023131020 = 225131161627427
BaseRepresentation
bin1000110010100011111…
…10110011111110001100
31001212120111210201202122
410121101332303332030
514422020410143040
6350425243512112
730551262153452
oct4312176637614
91055514721678
10302023131020
111070a6202606
124a64ab28638
1322633014560
1410891adc9d2
157cca0e01b5
hex4651fb3f8c

302023131020 has 24 divisors (see below), whose sum is σ = 683036927664. Its totient is φ = 111516232896.

The previous prime is 302023130999. The next prime is 302023131029. The reversal of 302023131020 is 20131320203.

It is a super-2 number, since 2×3020231310202 (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 302023131020.

It is not an unprimeable number, because it can be changed into a prime (302023131029) 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, 580813454 + ... + 580813973.

It is an arithmetic number, because the mean of its divisors is an integer number (28459871986).

Almost surely, 2302023131020 is an apocalyptic number.

It is an amenable number.

302023131020 is an abundant number, since it is smaller than the sum of its proper divisors (381013796644).

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

302023131020 is a wasteful number, since it uses less digits than its factorization.

302023131020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1161627449 (or 1161627447 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 302023131020 its reverse (20131320203), we get a palindrome (322154451223).

The spelling of 302023131020 in words is "three hundred two billion, twenty-three million, one hundred thirty-one thousand, twenty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 260 1161627427 2323254854 4646509708 5808137135 11616274270 15101156551 23232548540 30202313102 60404626204 75505782755 151011565510 302023131020