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302423130 = 23253360257
BaseRepresentation
bin10010000001101…
…001110001011010
3210002001200112200
4102001221301122
51104410020010
650001551030
710331361042
oct2201516132
9702050480
10302423130
11145789a79
1285345476
134a8689c9
142c244722
151b83bcc0
hex12069c5a

302423130 has 24 divisors (see below), whose sum is σ = 786300372. Its totient is φ = 80646144.

The previous prime is 302423119. The next prime is 302423179. The reversal of 302423130 is 31324203.

It can be written as a sum of positive squares in 2 ways, for example, as 298702089 + 3721041 = 17283^2 + 1929^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1680039 + ... + 1680218.

Almost surely, 2302423130 is an apocalyptic number.

302423130 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

302423130 is an abundant number, since it is smaller than the sum of its proper divisors (483877242).

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

302423130 is a wasteful number, since it uses less digits than its factorization.

302423130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3360270 (or 3360267 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 302423130 is about 17390.3171333935. The cubic root of 302423130 is about 671.2304780898.

Adding to 302423130 its reverse (31324203), we get a palindrome (333747333).

The spelling of 302423130 in words is "three hundred two million, four hundred twenty-three thousand, one hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 3360257 6720514 10080771 16801285 20161542 30242313 33602570 50403855 60484626 100807710 151211565 302423130