Search a number
-
+
74857201 is a prime number
BaseRepresentation
bin1000111011000…
…11101011110001
312012212010202221
410131203223301
5123130412301
611232241041
71566163366
oct435435361
9165763687
1074857201
1139289361
12210a0181
131267c603
149d2846d
156889da1
hex4763af1

74857201 has 2 divisors, whose sum is σ = 74857202. Its totient is φ = 74857200.

The previous prime is 74857183. The next prime is 74857231. The reversal of 74857201 is 10275847.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 54390625 + 20466576 = 7375^2 + 4524^2 .

It is an emirp because it is prime and its reverse (10275847) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 74857201 - 29 = 74856689 is a prime.

It is not a weakly prime, because it can be changed into another prime (74857231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37428600 + 37428601.

It is an arithmetic number, because the mean of its divisors is an integer number (37428601).

Almost surely, 274857201 is an apocalyptic number.

It is an amenable number.

74857201 is a deficient number, since it is larger than the sum of its proper divisors (1).

74857201 is an equidigital number, since it uses as much as digits as its factorization.

74857201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15680, while the sum is 34.

The square root of 74857201 is about 8652.0056056385. The cubic root of 74857201 is about 421.4485151804.

The spelling of 74857201 in words is "seventy-four million, eight hundred fifty-seven thousand, two hundred one".