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70631672173 = 1271813072679
BaseRepresentation
bin100000111000111111…
…0011100100101101101
320202022102221201012021
41001301332130211231
52124123202002143
652240413510141
75050214210326
oct1016176344555
9222272851167
1070631672173
1127a55812797
12118324a2351
13687828237a
1435c088544d
151c85cd7ced
hex1071f9c96d

70631672173 has 8 divisors (see below), whose sum is σ = 71581153280. Its totient is φ = 69688337040.

The previous prime is 70631672101. The next prime is 70631672183. The reversal of 70631672173 is 37127613607.

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

It is a cyclic number.

It is not a de Polignac number, because 70631672173 - 29 = 70631671661 is a prime.

It is a super-3 number, since 3×706316721733 (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70631672183) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1513353 + ... + 1559326.

It is an arithmetic number, because the mean of its divisors is an integer number (8947644160).

Almost surely, 270631672173 is an apocalyptic number.

It is an amenable number.

70631672173 is a deficient number, since it is larger than the sum of its proper divisors (949481107).

70631672173 is a wasteful number, since it uses less digits than its factorization.

70631672173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3072987.

The product of its (nonzero) digits is 222264, while the sum is 43.

The spelling of 70631672173 in words is "seventy billion, six hundred thirty-one million, six hundred seventy-two thousand, one hundred seventy-three".

Divisors: 1 127 181 22987 3072679 390230233 556154899 70631672173