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70900065109 = 671058209927
BaseRepresentation
bin100001000000111111…
…0010010001101010101
320210000010222111002101
41002001332102031111
52130200404040414
652323202242101
75056653416116
oct1020176221525
9223003874071
1070900065109
1128083269335
12118a8356331
1368bba64863
14360838c20d
151c9e651a74
hex1081f92355

70900065109 has 4 divisors (see below), whose sum is σ = 71958275104. Its totient is φ = 69841855116.

The previous prime is 70900065091. The next prime is 70900065113. The reversal of 70900065109 is 90156000907.

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 not a de Polignac number, because 70900065109 - 25 = 70900065077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70900065209) 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, 529104897 + ... + 529105030.

It is an arithmetic number, because the mean of its divisors is an integer number (17989568776).

Almost surely, 270900065109 is an apocalyptic number.

It is an amenable number.

70900065109 is a deficient number, since it is larger than the sum of its proper divisors (1058209995).

70900065109 is a wasteful number, since it uses less digits than its factorization.

70900065109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1058209994.

The product of its (nonzero) digits is 17010, while the sum is 37.

The spelling of 70900065109 in words is "seventy billion, nine hundred million, sixty-five thousand, one hundred nine".

Divisors: 1 67 1058209927 70900065109