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1430143146 = 232731088389
BaseRepresentation
bin101010100111110…
…0100000010101010
310200200001210120200
41111033210002222
510412104040041
6353524533030
750304005355
oct12517440252
93620053520
101430143146
11674307793
1233ab51176
1319a3a3963
14d7d1b29c
158584b1b6
hex553e40aa

1430143146 has 24 divisors (see below), whose sum is σ = 3141093540. Its totient is φ = 470183616.

The previous prime is 1430143123. The next prime is 1430143153. The reversal of 1430143146 is 6413410341.

It can be written as a sum of positive squares in 2 ways, for example, as 1429974225 + 168921 = 37815^2 + 411^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 542881 + ... + 545508.

Almost surely, 21430143146 is an apocalyptic number.

1430143146 is an abundant number, since it is smaller than the sum of its proper divisors (1710950394).

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

1430143146 is a wasteful number, since it uses less digits than its factorization.

1430143146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1088470 (or 1088467 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 1430143146 is about 37817.2334524883. The cubic root of 1430143146 is about 1126.6607625279.

Adding to 1430143146 its reverse (6413410341), we get a palindrome (7843553487).

The spelling of 1430143146 in words is "one billion, four hundred thirty million, one hundred forty-three thousand, one hundred forty-six".

Divisors: 1 2 3 6 9 18 73 146 219 438 657 1314 1088389 2176778 3265167 6530334 9795501 19591002 79452397 158904794 238357191 476714382 715071573 1430143146