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70633001 = 71994831
BaseRepresentation
bin1000011010111…
…00011000101001
311220220112021002
410031130120221
5121040224001
611001524345
71515241055
oct415343051
9156815232
1070633001
113696368a
121b7a36b5
131183099a
149548c65
15630346b
hex435c629

70633001 has 4 divisors (see below), whose sum is σ = 71627904. Its totient is φ = 69638100.

The previous prime is 70632997. The next prime is 70633021. The reversal of 70633001 is 10033607.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 10033607 = 47213481.

It is a cyclic number.

It is not a de Polignac number, because 70633001 - 22 = 70632997 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (70633021) 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, 497345 + ... + 497486.

It is an arithmetic number, because the mean of its divisors is an integer number (17906976).

Almost surely, 270633001 is an apocalyptic number.

70633001 is a gapful number since it is divisible by the number (71) formed by its first and last digit.

It is an amenable number.

70633001 is a deficient number, since it is larger than the sum of its proper divisors (994903).

70633001 is an equidigital number, since it uses as much as digits as its factorization.

70633001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 994902.

The product of its (nonzero) digits is 378, while the sum is 20.

The square root of 70633001 is about 8404.3441742946. The cubic root of 70633001 is about 413.3670792051.

Adding to 70633001 its reverse (10033607), we get a palindrome (80666608).

The spelling of 70633001 in words is "seventy million, six hundred thirty-three thousand, one".

Divisors: 1 71 994831 70633001