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1407142530 = 235517231481
BaseRepresentation
bin101001111011111…
…0100101010000010
310122001210020200000
41103313310222002
510340212030110
6351343540430
746604341233
oct12367645202
93561706600
101407142530
11662328012
123332ba716
131956ac821
14d4c5108a
15838061c0
hex53df4a82

1407142530 has 192 divisors, whose sum is σ = 4194747648. Its totient is φ = 337582080.

The previous prime is 1407142511. The next prime is 1407142531. The reversal of 1407142530 is 352417041.

1407142530 is a `hidden beast` number, since 1 + 407 + 1 + 4 + 253 + 0 = 666.

1407142530 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 1407142494 and 1407142503.

It is not an unprimeable number, because it can be changed into a prime (1407142531) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 949390 + ... + 950870.

It is an arithmetic number, because the mean of its divisors is an integer number (21847644).

Almost surely, 21407142530 is an apocalyptic number.

1407142530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1407142530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2097373824).

1407142530 is an abundant number, since it is smaller than the sum of its proper divisors (2787605118).

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

1407142530 is a wasteful number, since it uses less digits than its factorization.

1407142530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1543 (or 1531 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 1407142530 is about 37511.8985123387. The cubic root of 1407142530 is about 1120.5881609961.

Adding to 1407142530 its reverse (352417041), we get a palindrome (1759559571).

The spelling of 1407142530 in words is "one billion, four hundred seven million, one hundred forty-two thousand, five hundred thirty".