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103140031479 = 3207191659347
BaseRepresentation
bin110000000001110011…
…1111111101111110111
3100212020000011110122220
41200003213333233313
53142212322001404
6115214252453423
710310622542142
oct1400347775767
9325200143586
10103140031479
113a81794a241
1217ba547a273
139959212734
144dc60b9059
152a39c3e4d9
hex18039ffbf7

103140031479 has 8 divisors (see below), whose sum is σ = 137526762240. Its totient is φ = 68756660856.

The previous prime is 103140031457. The next prime is 103140031507. The reversal of 103140031479 is 974130041301.

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

It is not a de Polignac number, because 103140031479 - 28 = 103140031223 is a prime.

It is a super-2 number, since 2×1031400314792 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103140031409) 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, 767517 + ... + 891830.

It is an arithmetic number, because the mean of its divisors is an integer number (17190845280).

Almost surely, 2103140031479 is an apocalyptic number.

103140031479 is a deficient number, since it is larger than the sum of its proper divisors (34386730761).

103140031479 is a wasteful number, since it uses less digits than its factorization.

103140031479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1680069.

The product of its (nonzero) digits is 9072, while the sum is 33.

The spelling of 103140031479 in words is "one hundred three billion, one hundred forty million, thirty-one thousand, four hundred seventy-nine".

Divisors: 1 3 20719 62157 1659347 4978041 34380010493 103140031479