Search a number
-
+
157068571 = 1114278961
BaseRepresentation
bin10010101110010…
…10110100011011
3101221112220120111
421113022310123
5310202143241
623330305151
73615026602
oct1127126433
9357486514
10157068571
118072aa40
12447281b7
13267053aa
1416c08a39
15dbc8c81
hex95cad1b

157068571 has 4 divisors (see below), whose sum is σ = 171347544. Its totient is φ = 142789600.

The previous prime is 157068547. The next prime is 157068577. The reversal of 157068571 is 175860751.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 157068571 - 29 = 157068059 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (157068577) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7139470 + ... + 7139491.

It is an arithmetic number, because the mean of its divisors is an integer number (42836886).

Almost surely, 2157068571 is an apocalyptic number.

157068571 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

157068571 is a deficient number, since it is larger than the sum of its proper divisors (14278973).

157068571 is a wasteful number, since it uses less digits than its factorization.

157068571 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14278972.

The product of its (nonzero) digits is 58800, while the sum is 40.

The square root of 157068571 is about 12532.7000682215. The cubic root of 157068571 is about 539.5475989169.

The spelling of 157068571 in words is "one hundred fifty-seven million, sixty-eight thousand, five hundred seventy-one".

Divisors: 1 11 14278961 157068571