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181034007690 = 23513146064633
BaseRepresentation
bin1010100010011001110…
…1111011110010001010
3122022021120102110010210
42220212131323302022
510431224201221230
6215055455021550
716036122450534
oct2504635736212
9568246373123
10181034007690
116a859a83498
122b103b0a8b6
13140c0c2a913
148a9527a854
154a983a5eb0
hex2a2677bc8a

181034007690 has 32 divisors (see below), whose sum is σ = 437798281536. Its totient is φ = 47907217280.

The previous prime is 181034007689. The next prime is 181034007727. The reversal of 181034007690 is 96700430181.

181034007690 is digitally balanced in base 3 and base 7, because in such bases it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1810340076902 (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23028387 + ... + 23036246.

It is an arithmetic number, because the mean of its divisors is an integer number (13681196298).

Almost surely, 2181034007690 is an apocalyptic number.

181034007690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

181034007690 is an abundant number, since it is smaller than the sum of its proper divisors (256764273846).

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

181034007690 is a wasteful number, since it uses less digits than its factorization.

181034007690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46064774.

The product of its (nonzero) digits is 36288, while the sum is 39.

The spelling of 181034007690 in words is "one hundred eighty-one billion, thirty-four million, seven thousand, six hundred ninety".

Divisors: 1 2 3 5 6 10 15 30 131 262 393 655 786 1310 1965 3930 46064633 92129266 138193899 230323165 276387798 460646330 690969495 1381938990 6034466923 12068933846 18103400769 30172334615 36206801538 60344669230 90517003845 181034007690