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42970618009 = 113906419819
BaseRepresentation
bin101000000001001111…
…111001100010011001
311002220200210120022201
4220001033321202121
51201000434234014
631423533250201
73050565140464
oct500117714231
9132820716281
1042970618009
1117250880350
1283b2933961
13408a64a1b7
142118d262db
1511b76c4e74
hexa013f9899

42970618009 has 4 divisors (see below), whose sum is σ = 46877037840. Its totient is φ = 39064198180.

The previous prime is 42970618007. The next prime is 42970618013. The reversal of 42970618009 is 90081607924.

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.

It is a cyclic number.

It is not a de Polignac number, because 42970618009 - 21 = 42970618007 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42970618009.

It is not an unprimeable number, because it can be changed into a prime (42970618007) 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, 1953209899 + ... + 1953209920.

It is an arithmetic number, because the mean of its divisors is an integer number (11719259460).

Almost surely, 242970618009 is an apocalyptic number.

It is an amenable number.

42970618009 is a deficient number, since it is larger than the sum of its proper divisors (3906419831).

42970618009 is a wasteful number, since it uses less digits than its factorization.

42970618009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3906419830.

The product of its (nonzero) digits is 217728, while the sum is 46.

The spelling of 42970618009 in words is "forty-two billion, nine hundred seventy million, six hundred eighteen thousand, nine".

Divisors: 1 11 3906419819 42970618009