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140415023 = 723872143
BaseRepresentation
bin10000101111010…
…01000000101111
3100210012211012102
420113221000233
5241421240043
621533325315
73323336150
oct1027510057
9323184172
10140415023
1172295981
123b03683b
1323124218
1414911927
15c4d96b8
hex85e902f

140415023 has 8 divisors (see below), whose sum is σ = 167451648. Its totient is φ = 115122744.

The previous prime is 140415007. The next prime is 140415029. The reversal of 140415023 is 320514041.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 140415023 - 24 = 140415007 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 140414986 and 140415004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140415029) 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 7 ways as a sum of consecutive naturals, for example, 435911 + ... + 436232.

It is an arithmetic number, because the mean of its divisors is an integer number (20931456).

Almost surely, 2140415023 is an apocalyptic number.

140415023 is a deficient number, since it is larger than the sum of its proper divisors (27036625).

140415023 is an equidigital number, since it uses as much as digits as its factorization.

140415023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 872173.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 140415023 is about 11849.6845105682. The cubic root of 140415023 is about 519.7620003070.

Adding to 140415023 its reverse (320514041), we get a palindrome (460929064).

The spelling of 140415023 in words is "one hundred forty million, four hundred fifteen thousand, twenty-three".

Divisors: 1 7 23 161 872143 6105001 20059289 140415023