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140447377 = 722998837
BaseRepresentation
bin10000101111100…
…00111010010001
3100210021110120201
420113300322101
5241423304002
621534135201
73323532400
oct1027607221
9323243521
10140447377
1172308214
123b051501
1323135b75
141491d637
15c4e4087
hex85f0e91

140447377 has 12 divisors (see below), whose sum is σ = 169012980. Its totient is φ = 116231136.

The previous prime is 140447357. The next prime is 140447413. The reversal of 140447377 is 773744041.

It can be written as a sum of positive squares in 2 ways, for example, as 104878081 + 35569296 = 10241^2 + 5964^2 .

It is not a de Polignac number, because 140447377 - 211 = 140445329 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140447357) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 47998 + ... + 50839.

It is an arithmetic number, because the mean of its divisors is an integer number (14084415).

Almost surely, 2140447377 is an apocalyptic number.

It is an amenable number.

140447377 is a deficient number, since it is larger than the sum of its proper divisors (28565603).

140447377 is an equidigital number, since it uses as much as digits as its factorization.

140447377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98880 (or 98873 counting only the distinct ones).

The product of its (nonzero) digits is 65856, while the sum is 37.

The square root of 140447377 is about 11851.0496159623. The cubic root of 140447377 is about 519.8019178979.

The spelling of 140447377 in words is "one hundred forty million, four hundred forty-seven thousand, three hundred seventy-seven".

Divisors: 1 7 29 49 203 1421 98837 691859 2866273 4843013 20063911 140447377