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245450379 = 3194306147
BaseRepresentation
bin11101010000101…
…00011010001011
3122002212011121210
432220110122023
51000313403004
640204504203
76040202526
oct1650243213
9562764553
10245450379
11116606559
126a24b063
133bb0b915
1424853bbd
1516836089
hexea1468b

245450379 has 8 divisors (see below), whose sum is σ = 344491840. Its totient is φ = 155021256.

The previous prime is 245450363. The next prime is 245450383. The reversal of 245450379 is 973054542.

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

It is not a de Polignac number, because 245450379 - 24 = 245450363 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (245450329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2153017 + ... + 2153130.

It is an arithmetic number, because the mean of its divisors is an integer number (43061480).

Almost surely, 2245450379 is an apocalyptic number.

245450379 is a deficient number, since it is larger than the sum of its proper divisors (99041461).

245450379 is a wasteful number, since it uses less digits than its factorization.

245450379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4306169.

The product of its (nonzero) digits is 151200, while the sum is 39.

The square root of 245450379 is about 15666.8560662310. The cubic root of 245450379 is about 626.1156640317.

The spelling of 245450379 in words is "two hundred forty-five million, four hundred fifty thousand, three hundred seventy-nine".

Divisors: 1 3 19 57 4306147 12918441 81816793 245450379