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140202023 = 1383129937
BaseRepresentation
bin10000101101101…
…01000000100111
3100202211000000112
420112311000213
5241342431043
621525003235
73321461153
oct1026650047
9322730015
10140202023
117215a945
123ab5351b
132307b2a0
1414898063
15c496518
hex85b5027

140202023 has 8 divisors (see below), whose sum is σ = 152807088. Its totient is φ = 127857024.

The previous prime is 140202019. The next prime is 140202047. The reversal of 140202023 is 320202041.

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 140202023 - 22 = 140202019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 140201989 and 140202007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140202053) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63890 + ... + 66047.

It is an arithmetic number, because the mean of its divisors is an integer number (19100886).

Almost surely, 2140202023 is an apocalyptic number.

140202023 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

140202023 is a deficient number, since it is larger than the sum of its proper divisors (12605065).

140202023 is a wasteful number, since it uses less digits than its factorization.

140202023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130033.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 140202023 is about 11840.6935185402. The cubic root of 140202023 is about 519.4990528189.

Adding to 140202023 its reverse (320202041), we get a palindrome (460404064).

The spelling of 140202023 in words is "one hundred forty million, two hundred two thousand, twenty-three".

Divisors: 1 13 83 1079 129937 1689181 10784771 140202023