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2257382406 = 231812078621
BaseRepresentation
bin1000011010001100…
…1110110000000110
312211022122220111210
42012203032300012
514110342214111
61011555312250
7106640301546
oct20643166006
95738586453
102257382406
11a592628a4
1252bbab686
1329c8a3046
14175b37326
15d32a40a6
hex868cec06

2257382406 has 16 divisors (see below), whose sum is σ = 4539710448. Its totient is φ = 748303200.

The previous prime is 2257382401. The next prime is 2257382423. The reversal of 2257382406 is 6042837522.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2257382401) 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, 1038225 + ... + 1040396.

It is an arithmetic number, because the mean of its divisors is an integer number (283731903).

Almost surely, 22257382406 is an apocalyptic number.

2257382406 is an abundant number, since it is smaller than the sum of its proper divisors (2282328042).

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

2257382406 is a wasteful number, since it uses less digits than its factorization.

2257382406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2078807.

The product of its (nonzero) digits is 161280, while the sum is 39.

The square root of 2257382406 is about 47511.9185678709. The cubic root of 2257382406 is about 1311.8022715823.

The spelling of 2257382406 in words is "two billion, two hundred fifty-seven million, three hundred eighty-two thousand, four hundred six".

Divisors: 1 2 3 6 181 362 543 1086 2078621 4157242 6235863 12471726 376230401 752460802 1128691203 2257382406