Search a number
-
+
421380147 = 3151930199
BaseRepresentation
bin11001000111011…
…100000000110011
31002100220022220010
4121013130000303
51330333131042
6105451350003
713304446356
oct3107340063
91070808803
10421380147
111a6949161
12b9152303
13693b8c86
143dd6c29d
1526ed859c
hex191dc033

421380147 has 8 divisors (see below), whose sum is σ = 565561600. Its totient is φ = 279059400.

The previous prime is 421380143. The next prime is 421380151. The reversal of 421380147 is 741083124.

It is an interprime number because it is at equal distance from previous prime (421380143) and next prime (421380151).

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

It is not a de Polignac number, because 421380147 - 22 = 421380143 is a prime.

It is a super-2 number, since 2×4213801472 = 355122456571483218, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (421380143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 464647 + ... + 465552.

It is an arithmetic number, because the mean of its divisors is an integer number (70695200).

Almost surely, 2421380147 is an apocalyptic number.

421380147 is a deficient number, since it is larger than the sum of its proper divisors (144181453).

421380147 is a wasteful number, since it uses less digits than its factorization.

421380147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 930353.

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 421380147 is about 20527.5460540221. The cubic root of 421380147 is about 749.7066390452.

The spelling of 421380147 in words is "four hundred twenty-one million, three hundred eighty thousand, one hundred forty-seven".

Divisors: 1 3 151 453 930199 2790597 140460049 421380147