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354115420 = 22517705771
BaseRepresentation
bin10101000110110…
…101111101011100
3220200022221000221
4111012311331130
51211123143140
655045531124
711526634321
oct2506657534
9820287027
10354115420
1117198617a
129a713aa4
1358497469
143505cb48
152114d14a
hex151b5f5c

354115420 has 12 divisors (see below), whose sum is σ = 743642424. Its totient is φ = 141646160.

The previous prime is 354115403. The next prime is 354115439. The reversal of 354115420 is 24511453.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8852866 + ... + 8852905.

It is an arithmetic number, because the mean of its divisors is an integer number (61970202).

Almost surely, 2354115420 is an apocalyptic number.

It is an amenable number.

354115420 is an abundant number, since it is smaller than the sum of its proper divisors (389527004).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

354115420 is a wasteful number, since it uses less digits than its factorization.

354115420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17705780 (or 17705778 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 354115420 is about 18817.9547241458. The cubic root of 354115420 is about 707.4812690917.

Adding to 354115420 its reverse (24511453), we get a palindrome (378626873).

The spelling of 354115420 in words is "three hundred fifty-four million, one hundred fifteen thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 17705771 35411542 70823084 88528855 177057710 354115420