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380452349 = 2691414321
BaseRepresentation
bin10110101011010…
…011110111111101
3222111212222111202
4112223103313331
51234343433344
6101430225245
712266535344
oct2653236775
9874788452
10380452349
11185834532
12a74b5225
1360a89044
1438756b5b
152360194e
hex16ad3dfd

380452349 has 4 divisors (see below), whose sum is σ = 381866940. Its totient is φ = 379037760.

The previous prime is 380452343. The next prime is 380452399. The reversal of 380452349 is 943254083.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 943254083 = 1567601949.

It can be written as a sum of positive squares in 2 ways, for example, as 92064025 + 288388324 = 9595^2 + 16982^2 .

It is a cyclic number.

It is not a de Polignac number, because 380452349 - 216 = 380386813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (380452343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 706892 + ... + 707429.

It is an arithmetic number, because the mean of its divisors is an integer number (95466735).

Almost surely, 2380452349 is an apocalyptic number.

It is an amenable number.

380452349 is a deficient number, since it is larger than the sum of its proper divisors (1414591).

380452349 is a wasteful number, since it uses less digits than its factorization.

380452349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1414590.

The product of its (nonzero) digits is 103680, while the sum is 38.

The square root of 380452349 is about 19505.1877458280. The cubic root of 380452349 is about 724.6029369190.

The spelling of 380452349 in words is "three hundred eighty million, four hundred fifty-two thousand, three hundred forty-nine".

Divisors: 1 269 1414321 380452349