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188970399514790 = 2523857958705289
BaseRepresentation
bin101010111101111000011001…
…100010010100000010100110
3220210002101122001102221010222
4222331320121202110002212
5144232042334233433130
61505523445244444342
754542442443133365
oct5275703142240246
9823071561387128
10188970399514790
1155236995094823
121923b8905496b2
138159aa84a452a
14349430511d7dc
1516ca848dc5ce5
hexabde198940a6

188970399514790 has 32 divisors (see below), whose sum is σ = 355349867970240. Its totient is φ = 72217351934464.

The previous prime is 188970399514691. The next prime is 188970399514811. The reversal of 188970399514790 is 97415993079881.

It is a congruent number.

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, 479155535 + ... + 479549754.

It is an arithmetic number, because the mean of its divisors is an integer number (11104683374070).

Almost surely, 2188970399514790 is an apocalyptic number.

188970399514790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

188970399514790 is a deficient number, since it is larger than the sum of its proper divisors (166379468455450).

188970399514790 is a wasteful number, since it uses less digits than its factorization.

188970399514790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 958706176.

The product of its (nonzero) digits is 1234517760, while the sum is 80.

The spelling of 188970399514790 in words is "one hundred eighty-eight trillion, nine hundred seventy billion, three hundred ninety-nine million, five hundred fourteen thousand, seven hundred ninety".

Divisors: 1 2 5 10 23 46 115 230 857 1714 4285 8570 19711 39422 98555 197110 958705289 1917410578 4793526445 9587052890 22050221647 44100443294 110251108235 220502216470 821610432673 1643220865346 4108052163365 8216104326730 18897039951479 37794079902958 94485199757395 188970399514790