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138091030473795 = 35719415343173907
BaseRepresentation
bin11111011001011111010010…
…110100010110110001000011
3200002221101002100021220001120
4133121133102310112301003
5121044440412300130140
61205410051005003323
741041514316036240
oct3731372264266103
9602841070256046
10138091030473795
1140000093749793
12135a2b72853543
135c08c0b618309
1426158da53a5c7
1510e70e808b1d0
hex7d97d2d16c43

138091030473795 has 256 divisors, whose sum is σ = 278067012894720. Its totient is φ = 57111718809600.

The previous prime is 138091030473733. The next prime is 138091030473821. The reversal of 138091030473795 is 597374030190831.

It is a Cunningham number, because it is equal to 117512142-1.

It is not a de Polignac number, because 138091030473795 - 26 = 138091030473731 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 1868406232 + ... + 1868480138.

It is an arithmetic number, because the mean of its divisors is an integer number (1086199269120).

Almost surely, 2138091030473795 is an apocalyptic number.

138091030473795 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

138091030473795 is an abundant number, since it is smaller than the sum of its proper divisors (139975982420925).

138091030473795 is a wasteful number, since it uses less digits than its factorization.

138091030473795 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74466.

The product of its (nonzero) digits is 17146080, while the sum is 60.

The spelling of 138091030473795 in words is "one hundred thirty-eight trillion, ninety-one billion, thirty million, four hundred seventy-three thousand, seven hundred ninety-five".