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1430325421 = 71571737523
BaseRepresentation
bin101010101000001…
…0000100010101101
310200200102001121121
41111100100202231
510412130403141
6353532500541
750305364650
oct12520204255
93620361547
101430325421
11674421728
1233b01a751
1319a438905
14d7d67897
15858851d1
hex554108ad

1430325421 has 16 divisors (see below), whose sum is σ = 1654798464. Its totient is φ = 1210981824.

The previous prime is 1430325409. The next prime is 1430325433. The reversal of 1430325421 is 1245230341.

It is an interprime number because it is at equal distance from previous prime (1430325409) and next prime (1430325433).

It is a cyclic number.

It is not a de Polignac number, because 1430325421 - 27 = 1430325293 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1430325451) 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, 186366 + ... + 193888.

It is an arithmetic number, because the mean of its divisors is an integer number (103424904).

Almost surely, 21430325421 is an apocalyptic number.

It is an amenable number.

1430325421 is a deficient number, since it is larger than the sum of its proper divisors (224473043).

1430325421 is a wasteful number, since it uses less digits than its factorization.

1430325421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7860.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 1430325421 is about 37819.6433219564. The cubic root of 1430325421 is about 1126.7086256543.

Adding to 1430325421 its reverse (1245230341), we get a palindrome (2675555762).

The spelling of 1430325421 in words is "one billion, four hundred thirty million, three hundred twenty-five thousand, four hundred twenty-one".

Divisors: 1 7 157 173 1099 1211 7523 27161 52661 190127 1181111 1301479 8267777 9110353 204332203 1430325421