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1430520245 = 57113715637
BaseRepresentation
bin101010101000100…
…0000000110110101
310200200202221212022
41111101000012311
510412203121440
6353541002525
750310135650
oct12521000665
93620687768
101430520245
11674545040
1233b0b3445
1319a4a64ab
14d7db8897
15858c2cb5
hex554401b5

1430520245 has 16 divisors (see below), whose sum is σ = 2140207488. Its totient is φ = 891752640.

The previous prime is 1430520239. The next prime is 1430520257. The reversal of 1430520245 is 5420250341.

It is a happy number.

It is not a de Polignac number, because 1430520245 - 218 = 1430258101 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1857434 + ... + 1858203.

It is an arithmetic number, because the mean of its divisors is an integer number (133762968).

Almost surely, 21430520245 is an apocalyptic number.

It is an amenable number.

1430520245 is a deficient number, since it is larger than the sum of its proper divisors (709687243).

1430520245 is a wasteful number, since it uses less digits than its factorization.

1430520245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3715660.

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 1430520245 is about 37822.2189327913. The cubic root of 1430520245 is about 1126.7597794949.

Adding to 1430520245 its reverse (5420250341), we get a palindrome (6850770586).

The spelling of 1430520245 in words is "one billion, four hundred thirty million, five hundred twenty thousand, two hundred forty-five".

Divisors: 1 5 7 11 35 55 77 385 3715637 18578185 26009459 40872007 130047295 204360035 286104049 1430520245