Search a number
-
+
60157121 = 232615527
BaseRepresentation
bin1110010101111…
…0110011000001
311012012022001112
43211132303001
5110400011441
65545213105
71330220123
oct345366301
9135168045
1060157121
1130a58a32
1218191195
13c60363b
147dbd213
1554344eb
hex395ecc1

60157121 has 4 divisors (see below), whose sum is σ = 62772672. Its totient is φ = 57541572.

The previous prime is 60157109. The next prime is 60157159. The reversal of 60157121 is 12175106.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 60157121 - 26 = 60157057 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23), and also a Moran number because the ratio is a prime number: 2615527 = 60157121 / (6 + 0 + 1 + 5 + 7 + 1 + 2 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (60157171) 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, 1307741 + ... + 1307786.

It is an arithmetic number, because the mean of its divisors is an integer number (15693168).

Almost surely, 260157121 is an apocalyptic number.

It is an amenable number.

60157121 is a deficient number, since it is larger than the sum of its proper divisors (2615551).

60157121 is a wasteful number, since it uses less digits than its factorization.

60157121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2615550.

The product of its (nonzero) digits is 420, while the sum is 23.

The square root of 60157121 is about 7756.1021782852. The cubic root of 60157121 is about 391.8281928803.

The spelling of 60157121 in words is "sixty million, one hundred fifty-seven thousand, one hundred twenty-one".

Divisors: 1 23 2615527 60157121