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70903061020405 = 5100801140679281
BaseRepresentation
bin10000000111110001100111…
…110000111111111011110101
3100022001021012020020210122001
4100013301213300333323311
533243133432110123110
6410444225551135301
720635401643453225
oct2007614760777365
9308037166223561
1070903061020405
1120656901563949
127b515a3814531
13307418c6c0893
141371a255ba085
1582e540b1b63a
hex407c67c3fef5

70903061020405 has 8 divisors (see below), whose sum is σ = 85084517904984. Its totient is φ = 56721885696000.

The previous prime is 70903061020399. The next prime is 70903061020469. The reversal of 70903061020405 is 50402016030907.

It can be written as a sum of positive squares in 4 ways, for example, as 12734342127441 + 58168718892964 = 3568521^2 + 7626842^2 .

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

It is not a de Polignac number, because 70903061020405 - 227 = 70902926802677 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69835636 + ... + 70843645.

It is an arithmetic number, because the mean of its divisors is an integer number (10635564738123).

Almost surely, 270903061020405 is an apocalyptic number.

It is an amenable number.

70903061020405 is a deficient number, since it is larger than the sum of its proper divisors (14181456884579).

70903061020405 is a wasteful number, since it uses less digits than its factorization.

70903061020405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140780087.

The product of its (nonzero) digits is 45360, while the sum is 37.

The spelling of 70903061020405 in words is "seventy trillion, nine hundred three billion, sixty-one million, twenty thousand, four hundred five".

Divisors: 1 5 100801 504005 140679281 703396405 14180612204081 70903061020405