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140387930 = 2521436551
BaseRepresentation
bin10000101111000…
…10011001011010
3100210011110000222
420113202121122
5241414403210
621533000042
73323164154
oct1027423132
9323143028
10140387930
1172277591
123b023022
1323114aa7
1414905ad4
15c4d1655
hex85e265a

140387930 has 16 divisors (see below), whose sum is σ = 252854784. Its totient is φ = 56120400.

The previous prime is 140387917. The next prime is 140387957. The reversal of 140387930 is 39783041.

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 7 ways as a sum of consecutive naturals, for example, 18155 + ... + 24705.

It is an arithmetic number, because the mean of its divisors is an integer number (15803424).

Almost surely, 2140387930 is an apocalyptic number.

140387930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

140387930 is a deficient number, since it is larger than the sum of its proper divisors (112466854).

140387930 is a wasteful number, since it uses less digits than its factorization.

140387930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8701.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 140387930 is about 11848.5412604253. The cubic root of 140387930 is about 519.7285688945.

The spelling of 140387930 in words is "one hundred forty million, three hundred eighty-seven thousand, nine hundred thirty".

Divisors: 1 2 5 10 2143 4286 6551 10715 13102 21430 32755 65510 14038793 28077586 70193965 140387930