Search a number
-
+
1396956235 = 5279391247
BaseRepresentation
bin101001101000011…
…1101110001001011
310121100121201200211
41103100331301023
510330110044420
6350341341551
746421634463
oct12320756113
93540551624
101396956235
116575aa994
1232ba078b7
1319355422c
14d375cba3
1582992e5a
hex5343dc4b

1396956235 has 4 divisors (see below), whose sum is σ = 1676347488. Its totient is φ = 1117564984.

The previous prime is 1396956233. The next prime is 1396956241. The reversal of 1396956235 is 5326596931.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5326596931 = 25237211063.

It is a cyclic number.

It is not a de Polignac number, because 1396956235 - 21 = 1396956233 is a prime.

It is a Smith number, since the sum of its digits (49) 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 (1396956233) 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, 139695619 + ... + 139695628.

It is an arithmetic number, because the mean of its divisors is an integer number (419086872).

Almost surely, 21396956235 is an apocalyptic number.

1396956235 is a deficient number, since it is larger than the sum of its proper divisors (279391253).

1396956235 is an equidigital number, since it uses as much as digits as its factorization.

1396956235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279391252.

The product of its digits is 1312200, while the sum is 49.

The square root of 1396956235 is about 37375.8777154464. The cubic root of 1396956235 is about 1117.8776333015.

The spelling of 1396956235 in words is "one billion, three hundred ninety-six million, nine hundred fifty-six thousand, two hundred thirty-five".

Divisors: 1 5 279391247 1396956235