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130333278 = 2321722213
BaseRepresentation
bin1111100010010…
…11101001011110
3100002020121122110
413301023221132
5231331131103
620533254450
73141546255
oct761135136
9302217573
10130333278
116762a359
1237794426
13210043aa
141344979c
15b697403
hex7c4ba5e

130333278 has 8 divisors (see below), whose sum is σ = 260666568. Its totient is φ = 43444424.

The previous prime is 130333253. The next prime is 130333297. The reversal of 130333278 is 872333031.

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

130333278 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10861101 + ... + 10861112.

It is an arithmetic number, because the mean of its divisors is an integer number (32583321).

Almost surely, 2130333278 is an apocalyptic number.

130333278 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

130333278 is a wasteful number, since it uses less digits than its factorization.

130333278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21722218.

The product of its (nonzero) digits is 9072, while the sum is 30.

The square root of 130333278 is about 11416.3601029400. The cubic root of 130333278 is about 507.0122347261.

The spelling of 130333278 in words is "one hundred thirty million, three hundred thirty-three thousand, two hundred seventy-eight".

Divisors: 1 2 3 6 21722213 43444426 65166639 130333278