Search a number
-
+
2147152379 = 4933435263
BaseRepresentation
bin111111111111010…
…1111000111111011
312112122020122100012
41333332233013323
513344132334004
6553020532135
7104131331321
oct17776570773
95478218305
102147152379
11a020143a9
124bb0b104b
13282aba088
14165241d11
15c877d46e
hex7ffaf1fb

2147152379 has 4 divisors (see below), whose sum is σ = 2147592576. Its totient is φ = 2146712184.

The previous prime is 2147152363. The next prime is 2147152421. The reversal of 2147152379 is 9732517412.

It is a happy number.

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 2147152379 - 24 = 2147152363 is a prime.

It is a super-2 number, since 2×21471523792 = 9220526677290719282, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2147182379) 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, 212699 + ... + 222564.

It is an arithmetic number, because the mean of its divisors is an integer number (536898144).

Almost surely, 22147152379 is an apocalyptic number.

2147152379 is a deficient number, since it is larger than the sum of its proper divisors (440197).

2147152379 is an equidigital number, since it uses as much as digits as its factorization.

2147152379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 440196.

The product of its digits is 105840, while the sum is 41.

The square root of 2147152379 is about 46337.3756162345. The cubic root of 2147152379 is about 1290.0928120631.

The spelling of 2147152379 in words is "two billion, one hundred forty-seven million, one hundred fifty-two thousand, three hundred seventy-nine".

Divisors: 1 4933 435263 2147152379