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42415025321 = 251691685209
BaseRepresentation
bin100111100000001000…
…011110110010101001
311001110222100112102202
4213200020132302221
51143331221302241
631252445105545
73031040523644
oct474010366251
9131428315382
1042415025321
1116a961a3339
1282788582b5
133ccc4cc226
1420a521ca5b
151183a29d9b
hex9e021eca9

42415025321 has 4 divisors (see below), whose sum is σ = 42416735700. Its totient is φ = 42413314944.

The previous prime is 42415025299. The next prime is 42415025327. The reversal of 42415025321 is 12352051424.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5700250000 + 36714775321 = 75500^2 + 191611^2 .

It is a cyclic number.

It is not a de Polignac number, because 42415025321 - 222 = 42410831017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42415025327) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 817436 + ... + 867773.

It is an arithmetic number, because the mean of its divisors is an integer number (10604183925).

Almost surely, 242415025321 is an apocalyptic number.

It is an amenable number.

42415025321 is a deficient number, since it is larger than the sum of its proper divisors (1710379).

42415025321 is a wasteful number, since it uses less digits than its factorization.

42415025321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1710378.

The product of its (nonzero) digits is 9600, while the sum is 29.

Adding to 42415025321 its reverse (12352051424), we get a palindrome (54767076745).

The spelling of 42415025321 in words is "forty-two billion, four hundred fifteen million, twenty-five thousand, three hundred twenty-one".

Divisors: 1 25169 1685209 42415025321