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140794490 = 25139199509
BaseRepresentation
bin10000110010001…
…01101001111010
3100210221002201202
420121011221322
5242020410430
621545414202
73326506364
oct1031055172
9323832652
10140794490
1172524a91
123b19a362
1323227b65
14149add34
15c561d45
hex8645a7a

140794490 has 32 divisors (see below), whose sum is σ = 257040000. Its totient is φ = 55522368.

The previous prime is 140794487. The next prime is 140794531. The reversal of 140794490 is 94497041.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 276356 + ... + 276864.

It is an arithmetic number, because the mean of its divisors is an integer number (8032500).

Almost surely, 2140794490 is an apocalyptic number.

140794490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

140794490 is a deficient number, since it is larger than the sum of its proper divisors (116245510).

140794490 is a wasteful number, since it uses less digits than its factorization.

140794490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 854.

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 140794490 is about 11865.6853995039. The cubic root of 140794490 is about 520.2297924220.

The spelling of 140794490 in words is "one hundred forty million, seven hundred ninety-four thousand, four hundred ninety".

Divisors: 1 2 5 10 139 199 278 398 509 695 995 1018 1390 1990 2545 5090 27661 55322 70751 101291 138305 141502 202582 276610 353755 506455 707510 1012910 14079449 28158898 70397245 140794490