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140550215 = 51319111321
BaseRepresentation
bin10000110000010…
…10000001000111
3100210110200122112
420120022001013
5241440101330
621540251235
73324441251
oct1030120107
9323420575
10140550215
1172378503
123b0a0b1b
1323170910
1414948cd1
15c514795
hex860a047

140550215 has 16 divisors (see below), whose sum is σ = 182601216. Its totient is φ = 103238400.

The previous prime is 140550197. The next prime is 140550229. The reversal of 140550215 is 512055041.

It is a happy number.

It is not a de Polignac number, because 140550215 - 210 = 140549191 is a prime.

It is a Duffinian number.

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, 6755 + ... + 18075.

It is an arithmetic number, because the mean of its divisors is an integer number (11412576).

Almost surely, 2140550215 is an apocalyptic number.

140550215 is a deficient number, since it is larger than the sum of its proper divisors (42051001).

140550215 is a wasteful number, since it uses less digits than its factorization.

140550215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11530.

The product of its (nonzero) digits is 1000, while the sum is 23.

The square root of 140550215 is about 11855.3875938326. The cubic root of 140550215 is about 519.9287562652.

The spelling of 140550215 in words is "one hundred forty million, five hundred fifty thousand, two hundred fifteen".

Divisors: 1 5 13 65 191 955 2483 11321 12415 56605 147173 735865 2162311 10811555 28110043 140550215