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354434143 = 7294314051
BaseRepresentation
bin10101001000000…
…011110001011111
3220200221010020111
4111020003301133
51211213343033
655100430451
711532432460
oct2510036137
9820833214
10354434143
11172083688
129a848427
135857955b
1435102d67
15211b27cd
hex15203c5f

354434143 has 16 divisors (see below), whose sum is σ = 420111360. Its totient is φ = 292572000.

The previous prime is 354434089. The next prime is 354434159. The reversal of 354434143 is 341434453.

It is a de Polignac number, because none of the positive numbers 2k-354434143 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 (354434243) 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, 85468 + ... + 89518.

It is an arithmetic number, because the mean of its divisors is an integer number (26256960).

Almost surely, 2354434143 is an apocalyptic number.

354434143 is a deficient number, since it is larger than the sum of its proper divisors (65677217).

354434143 is a wasteful number, since it uses less digits than its factorization.

354434143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4518.

The product of its digits is 34560, while the sum is 31.

The square root of 354434143 is about 18826.4214071607. The cubic root of 354434143 is about 707.6934625578.

Adding to 354434143 its reverse (341434453), we get a palindrome (695868596).

The spelling of 354434143 in words is "three hundred fifty-four million, four hundred thirty-four thousand, one hundred forty-three".

Divisors: 1 7 29 203 431 3017 4051 12499 28357 87493 117479 822353 1745981 12221867 50633449 354434143