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244130421 = 31713136541
BaseRepresentation
bin11101000110100…
…10001001110101
3122000101002222110
432203102021311
5444444133141
640120321233
76023034333
oct1643221165
9560332873
10244130421
11115894887
1269913219
133b768b92
14245ccb53
1516674e16
hexe8d2275

244130421 has 16 divisors (see below), whose sum is σ = 347295168. Its totient is φ = 152006400.

The previous prime is 244130413. The next prime is 244130423. The reversal of 244130421 is 124031442.

244130421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 244130421 - 23 = 244130413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (244130423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11590 + ... + 24951.

It is an arithmetic number, because the mean of its divisors is an integer number (21705948).

Almost surely, 2244130421 is an apocalyptic number.

It is an amenable number.

244130421 is a deficient number, since it is larger than the sum of its proper divisors (103164747).

244130421 is a wasteful number, since it uses less digits than its factorization.

244130421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36692.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 244130421 is about 15624.6734685881. The cubic root of 244130421 is about 624.9912924654.

Adding to 244130421 its reverse (124031442), we get a palindrome (368161863).

The spelling of 244130421 in words is "two hundred forty-four million, one hundred thirty thousand, four hundred twenty-one".

Divisors: 1 3 17 51 131 393 2227 6681 36541 109623 621197 1863591 4786871 14360613 81376807 244130421