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70448937879 = 3531094064909
BaseRepresentation
bin100000110011100010…
…1010111101110010111
320201211201002211212110
41001213011113232113
52123234412003004
652210325122103
75042535043305
oct1014705275627
9221751084773
1070448937879
1127971652811
12117a1259333
136849461a78
1435a44b9275
151c74c3e589
hex1067157b97

70448937879 has 16 divisors (see below), whose sum is σ = 96582261600. Its totient is φ = 45657046656.

The previous prime is 70448937847. The next prime is 70448937883. The reversal of 70448937879 is 97873984407.

It is a happy number.

It is not a de Polignac number, because 70448937879 - 25 = 70448937847 is a prime.

It is a super-3 number, since 3×704489378793 (a number of 34 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70448933879) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2015124 + ... + 2049785.

It is an arithmetic number, because the mean of its divisors is an integer number (6036391350).

Almost surely, 270448937879 is an apocalyptic number.

70448937879 is a deficient number, since it is larger than the sum of its proper divisors (26133323721).

70448937879 is a wasteful number, since it uses less digits than its factorization.

70448937879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4065074.

The product of its (nonzero) digits is 85349376, while the sum is 66.

The spelling of 70448937879 in words is "seventy billion, four hundred forty-eight million, nine hundred thirty-seven thousand, eight hundred seventy-nine".

Divisors: 1 3 53 109 159 327 5777 17331 4064909 12194727 215440177 443075081 646320531 1329225243 23482979293 70448937879