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140415115 = 523253087
BaseRepresentation
bin10000101111010…
…01000010001011
3100210012211022211
420113221002023
5241421240430
621533325551
73323336341
oct1027510213
9323184284
10140415115
1172295a55
123b0368b7
1323124289
1414911991
15c4d972a
hex85e908b

140415115 has 12 divisors (see below), whose sum is σ = 176145984. Its totient is φ = 107446064.

The previous prime is 140415113. The next prime is 140415131. The reversal of 140415115 is 511514041.

It is a happy number.

It is not a de Polignac number, because 140415115 - 21 = 140415113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140415113) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23899 + ... + 29188.

It is an arithmetic number, because the mean of its divisors is an integer number (14678832).

Almost surely, 2140415115 is an apocalyptic number.

140415115 is a deficient number, since it is larger than the sum of its proper divisors (35730869).

140415115 is an equidigital number, since it uses as much as digits as its factorization.

140415115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53138 (or 53115 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 22.

The square root of 140415115 is about 11849.6883925275. The cubic root of 140415115 is about 519.7621138231.

Adding to 140415115 its reverse (511514041), we get a palindrome (651929156).

The spelling of 140415115 in words is "one hundred forty million, four hundred fifteen thousand, one hundred fifteen".

Divisors: 1 5 23 115 529 2645 53087 265435 1221001 6105005 28083023 140415115