[go: up one dir, main page]

Search a number
-
+
64229901 = 3130716381
BaseRepresentation
bin1111010100000…
…1001000001101
311110212012212020
43311001020031
5112420324101
610212400353
71406642121
oct365011015
9143765766
1064229901
113328a96a
12196160b9
13103cb378
14875d581
15598b136
hex3d4120d

64229901 has 8 divisors (see below), whose sum is σ = 85710624. Its totient is φ = 42784560.

The previous prime is 64229881. The next prime is 64229911. The reversal of 64229901 is 10992246.

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

It is not a de Polignac number, because 64229901 - 27 = 64229773 is a prime.

It is a super-5 number, since 5×642299015 (a number of 40 digits) contains 55555 as substring.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64229911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4270 + ... + 12111.

It is an arithmetic number, because the mean of its divisors is an integer number (10713828).

Almost surely, 264229901 is an apocalyptic number.

It is an amenable number.

64229901 is a deficient number, since it is larger than the sum of its proper divisors (21480723).

64229901 is a wasteful number, since it uses less digits than its factorization.

64229901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17691.

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 64229901 is about 8014.3559317016. The cubic root of 64229901 is about 400.4783880508.

The spelling of 64229901 in words is "sixty-four million, two hundred twenty-nine thousand, nine hundred one".

Divisors: 1 3 1307 3921 16381 49143 21409967 64229901