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2057510478 = 23342918413
BaseRepresentation
bin111101010100011…
…0001111001001110
312022101120100202210
41322220301321032
513203210313403
6540055331250
7101662356552
oct17250617116
95271510683
102057510478
11966458091
12495080b26
1326a36212a
14157389862
15c0972b03
hex7aa31e4e

2057510478 has 8 divisors (see below), whose sum is σ = 4115020968. Its totient is φ = 685836824.

The previous prime is 2057510449. The next prime is 2057510519. The reversal of 2057510478 is 8740157502.

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

2057510478 is an admirable number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 171459201 + ... + 171459212.

It is an arithmetic number, because the mean of its divisors is an integer number (514377621).

Almost surely, 22057510478 is an apocalyptic number.

2057510478 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.

2057510478 is a wasteful number, since it uses less digits than its factorization.

2057510478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342918418.

The product of its (nonzero) digits is 78400, while the sum is 39.

The square root of 2057510478 is about 45359.7892190870. The cubic root of 2057510478 is about 1271.8835543199.

The spelling of 2057510478 in words is "two billion, fifty-seven million, five hundred ten thousand, four hundred seventy-eight".

Divisors: 1 2 3 6 342918413 685836826 1028755239 2057510478