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70547311420 = 2253527365571
BaseRepresentation
bin100000110110011110…
…0101000101100111100
320202002120012201222221
41001230330220230330
52123440102431140
652224201415124
75045141152525
oct1015474505474
9222076181887
1070547311420
1127a12133263
121180a19a4a4
136863956171
1435b35a584c
151c7d6c214a
hex106cf28b3c

70547311420 has 12 divisors (see below), whose sum is σ = 148149354024. Its totient is φ = 28218924560.

The previous prime is 70547311409. The next prime is 70547311427. The reversal of 70547311420 is 2411374507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70547311427) 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, 1763682766 + ... + 1763682805.

It is an arithmetic number, because the mean of its divisors is an integer number (12345779502).

Almost surely, 270547311420 is an apocalyptic number.

It is an amenable number.

70547311420 is an abundant number, since it is smaller than the sum of its proper divisors (77602042604).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

70547311420 is a wasteful number, since it uses less digits than its factorization.

70547311420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3527365580 (or 3527365578 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 34.

Adding to 70547311420 its reverse (2411374507), we get a palindrome (72958685927).

The spelling of 70547311420 in words is "seventy billion, five hundred forty-seven million, three hundred eleven thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 3527365571 7054731142 14109462284 17636827855 35273655710 70547311420