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361421383 = 675394349
BaseRepresentation
bin10101100010101…
…101101001000111
3221012002002221011
4111202231221013
51220010441013
655510303051
711646013441
oct2542555107
9835062834
10361421383
11176016264
12a1057a87
1359b54a0b
1436001491
1521ae2c3d
hex158ada47

361421383 has 4 divisors (see below), whose sum is σ = 366815800. Its totient is φ = 356026968.

The previous prime is 361421381. The next prime is 361421387. The reversal of 361421383 is 383124163.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 383124163 = 2931307591.

It is a cyclic number.

It is not a de Polignac number, because 361421383 - 21 = 361421381 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (361421381) 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, 2697108 + ... + 2697241.

It is an arithmetic number, because the mean of its divisors is an integer number (91703950).

Almost surely, 2361421383 is an apocalyptic number.

361421383 is a deficient number, since it is larger than the sum of its proper divisors (5394417).

361421383 is an equidigital number, since it uses as much as digits as its factorization.

361421383 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5394416.

The product of its digits is 10368, while the sum is 31.

The square root of 361421383 is about 19011.0857922424. The cubic root of 361421383 is about 712.3136735719.

The spelling of 361421383 in words is "three hundred sixty-one million, four hundred twenty-one thousand, three hundred eighty-three".

Divisors: 1 67 5394349 361421383