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455135730 = 235717232241
BaseRepresentation
bin11011001000001…
…101000111110010
31011201102021211220
4123020031013302
51413003320410
6113055045510
714164406220
oct3310150762
91151367756
10455135730
11213a04235
12108510896
13733a74aa
1444637b10
1529e55070
hex1b20d1f2

455135730 has 192 divisors, whose sum is σ = 1387507968. Its totient is φ = 93265920.

The previous prime is 455135717. The next prime is 455135731. The reversal of 455135730 is 37531554.

It is a junction number, because it is equal to n+sod(n) for n = 455135691 and 455135700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (455135731) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1888410 + ... + 1888650.

It is an arithmetic number, because the mean of its divisors is an integer number (7226604).

Almost surely, 2455135730 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 455135730, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (693753984).

455135730 is an abundant number, since it is smaller than the sum of its proper divisors (932372238).

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

455135730 is a wasteful number, since it uses less digits than its factorization.

455135730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321 (or 298 counting only the distinct ones).

The product of its (nonzero) digits is 31500, while the sum is 33.

The square root of 455135730 is about 21333.9103307387. The cubic root of 455135730 is about 769.2136403391.

The spelling of 455135730 in words is "four hundred fifty-five million, one hundred thirty-five thousand, seven hundred thirty".