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140023115 = 5220712689
BaseRepresentation
bin10000101100010…
…01010101001011
3100202110220121022
420112021111023
5241321214430
621521103055
73320114441
oct1026112513
9322426538
10140023115
1172048491
123aa87a8b
1323017a1b
141484cb91
15c45d4e5
hex858954b

140023115 has 8 divisors (see below), whose sum is σ = 168117120. Its totient is φ = 111958912.

The previous prime is 140023073. The next prime is 140023123. The reversal of 140023115 is 511320041.

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 140023115 - 216 = 139957579 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 140023093 and 140023102.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4691 + ... + 17379.

It is an arithmetic number, because the mean of its divisors is an integer number (21014640).

Almost surely, 2140023115 is an apocalyptic number.

140023115 is a deficient number, since it is larger than the sum of its proper divisors (28094005).

140023115 is a wasteful number, since it uses less digits than its factorization.

140023115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14901.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 140023115 is about 11833.1363129138. The cubic root of 140023115 is about 519.2779858747.

Adding to 140023115 its reverse (511320041), we get a palindrome (651343156).

The spelling of 140023115 in words is "one hundred forty million, twenty-three thousand, one hundred fifteen".

Divisors: 1 5 2207 11035 12689 63445 28004623 140023115