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70492993 = 367401479
BaseRepresentation
bin1000011001110…
…10001101000001
311220122102012121
410030322031001
5121021233433
610554524241
71514115634
oct414721501
9156572177
1070492993
113687847a
121b736681
13117b203c
14950dc1b
1562c6c2d
hex433a341

70492993 has 8 divisors (see below), whose sum is σ = 71009280. Its totient is φ = 69979200.

The previous prime is 70492973. The next prime is 70493011. The reversal of 70492993 is 39929407.

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

It is a cyclic number.

It is not a de Polignac number, because 70492993 - 213 = 70484801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70492913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 146928 + ... + 147406.

It is an arithmetic number, because the mean of its divisors is an integer number (8876160).

Almost surely, 270492993 is an apocalyptic number.

It is an amenable number.

70492993 is a deficient number, since it is larger than the sum of its proper divisors (516287).

70492993 is a wasteful number, since it uses less digits than its factorization.

70492993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1247.

The product of its (nonzero) digits is 122472, while the sum is 43.

The square root of 70492993 is about 8396.0105407271. The cubic root of 70492993 is about 413.0937745699.

The spelling of 70492993 in words is "seventy million, four hundred ninety-two thousand, nine hundred ninety-three".

Divisors: 1 367 401 479 147167 175793 192079 70492993