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70748043371 = 562391257989
BaseRepresentation
bin100000111100011101…
…0010111100001101011
320202121112220222110122
41001320322113201223
52124342444341441
652300132033455
75053126306055
oct1017072274153
9222545828418
1070748043371
1128005476135
121186546288b
136896408675
1435d20d88d5
151c9112334b
hex1078e9786b

70748043371 has 4 divisors (see below), whose sum is σ = 70749357600. Its totient is φ = 70746729144.

The previous prime is 70748043349. The next prime is 70748043403. The reversal of 70748043371 is 17334084707.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-70748043371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70748043341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 572756 + ... + 685233.

It is an arithmetic number, because the mean of its divisors is an integer number (17687339400).

Almost surely, 270748043371 is an apocalyptic number.

70748043371 is a deficient number, since it is larger than the sum of its proper divisors (1314229).

70748043371 is a wasteful number, since it uses less digits than its factorization.

70748043371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1314228.

The product of its (nonzero) digits is 395136, while the sum is 44.

The spelling of 70748043371 in words is "seventy billion, seven hundred forty-eight million, forty-three thousand, three hundred seventy-one".

Divisors: 1 56239 1257989 70748043371