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361990343 = 11137433407
BaseRepresentation
bin10101100100111…
…000100011000111
3221020011000101202
4111210320203013
51220132142333
655530413115
711653603301
oct2544704307
9836130352
10361990343
11176374780
12a129119b
1359cc3990
143610c971
1521ba65e8
hex159388c7

361990343 has 16 divisors (see below), whose sum is σ = 425972736. Its totient is φ = 303270240.

The previous prime is 361990313. The next prime is 361990357. The reversal of 361990343 is 343099163.

It is not a de Polignac number, because 361990343 - 210 = 361989319 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 361990297 and 361990306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (361990303) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 104546 + ... + 107952.

It is an arithmetic number, because the mean of its divisors is an integer number (26623296).

Almost surely, 2361990343 is an apocalyptic number.

361990343 is a deficient number, since it is larger than the sum of its proper divisors (63982393).

361990343 is a wasteful number, since it uses less digits than its factorization.

361990343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4174.

The product of its (nonzero) digits is 52488, while the sum is 38.

The square root of 361990343 is about 19026.0438084222. The cubic root of 361990343 is about 712.6872592033.

The spelling of 361990343 in words is "three hundred sixty-one million, nine hundred ninety thousand, three hundred forty-three".

Divisors: 1 11 13 143 743 3407 8173 9659 37477 44291 106249 487201 2531401 27845411 32908213 361990343