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157140115 = 5112857093
BaseRepresentation
bin10010101110111…
…00010010010011
3101221200112201021
421113130102103
5310211440430
623332020311
73615445306
oct1127342223
9357615637
10157140115
1180779770
1244761697
132672bb22
1416c26b3d
15dbe007a
hex95dc493

157140115 has 8 divisors (see below), whose sum is σ = 205710768. Its totient is φ = 114283680.

The previous prime is 157140107. The next prime is 157140119. The reversal of 157140115 is 511041751.

157140115 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 157140115 - 23 = 157140107 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 157140115.

It is not an unprimeable number, because it can be changed into a prime (157140119) 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, 1428492 + ... + 1428601.

It is an arithmetic number, because the mean of its divisors is an integer number (25713846).

Almost surely, 2157140115 is an apocalyptic number.

157140115 is a deficient number, since it is larger than the sum of its proper divisors (48570653).

157140115 is a wasteful number, since it uses less digits than its factorization.

157140115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2857109.

The product of its (nonzero) digits is 700, while the sum is 25.

The square root of 157140115 is about 12535.5540364198. The cubic root of 157140115 is about 539.6295069518.

Adding to 157140115 its reverse (511041751), we get a palindrome (668181866).

The spelling of 157140115 in words is "one hundred fifty-seven million, one hundred forty thousand, one hundred fifteen".

Divisors: 1 5 11 55 2857093 14285465 31428023 157140115