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354000401 = 1720823553
BaseRepresentation
bin10101000110011…
…001111000010001
3220200010002020222
4111012121320101
51211111003101
655043242425
711525645066
oct2506317021
9820102228
10354000401
11171907817
129a679415
1358456cc1
143502cc6d
152112901b
hex15199e11

354000401 has 4 divisors (see below), whose sum is σ = 374823972. Its totient is φ = 333176832.

The previous prime is 354000373. The next prime is 354000443. The reversal of 354000401 is 104000453.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 104000453 = 202951257.

It can be written as a sum of positive squares in 2 ways, for example, as 237899776 + 116100625 = 15424^2 + 10775^2 .

It is a cyclic number.

It is not a de Polignac number, because 354000401 - 214 = 353984017 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17), and also a Moran number because the ratio is a prime number: 20823553 = 354000401 / (3 + 5 + 4 + 0 + 0 + 0 + 4 + 0 + 1).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 354000401.

It is not an unprimeable number, because it can be changed into a prime (354000481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10411760 + ... + 10411793.

It is an arithmetic number, because the mean of its divisors is an integer number (93705993).

Almost surely, 2354000401 is an apocalyptic number.

It is an amenable number.

354000401 is a deficient number, since it is larger than the sum of its proper divisors (20823571).

354000401 is a wasteful number, since it uses less digits than its factorization.

354000401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20823570.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 354000401 is about 18814.8983786785. The cubic root of 354000401 is about 707.4046626188.

Adding to 354000401 its reverse (104000453), we get a palindrome (458000854).

The spelling of 354000401 in words is "three hundred fifty-four million, four hundred one", and thus it is an aban number.

Divisors: 1 17 20823553 354000401