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1430121445 = 52511139539
BaseRepresentation
bin101010100111101…
…1110101111100101
310200200000200210221
41111033132233211
510412102341240
6353524244341
750303555164
oct12517365745
93620020727
101430121445
116742a2455
1233ab406b1
1319a396b0c
14d7d133db
1585844a4a
hex553debe5

1430121445 has 8 divisors (see below), whose sum is σ = 1722984480. Its totient is φ = 1139538000.

The previous prime is 1430121421. The next prime is 1430121463. The reversal of 1430121445 is 5441210341.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2k-1430121445 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 568515 + ... + 571024.

It is an arithmetic number, because the mean of its divisors is an integer number (215373060).

Almost surely, 21430121445 is an apocalyptic number.

It is an amenable number.

1430121445 is a deficient number, since it is larger than the sum of its proper divisors (292863035).

1430121445 is a wasteful number, since it uses less digits than its factorization.

1430121445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1139795.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 1430121445 is about 37816.9465319452. The cubic root of 1430121445 is about 1126.6550638469.

Adding to 1430121445 its reverse (5441210341), we get a palindrome (6871331786).

The spelling of 1430121445 in words is "one billion, four hundred thirty million, one hundred twenty-one thousand, four hundred forty-five".

Divisors: 1 5 251 1255 1139539 5697695 286024289 1430121445