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354093909 = 3139079331
BaseRepresentation
bin10101000110110…
…000101101010101
3220200021211112020
4111012300231111
51211122001114
655045243353
711526514521
oct2506605525
9820254466
10354093909
11171970aa4
129a703559
135848a730
1435054d81
1521146aa9
hex151b0b55

354093909 has 8 divisors (see below), whose sum is σ = 508442592. Its totient is φ = 217903920.

The previous prime is 354093889. The next prime is 354093913. The reversal of 354093909 is 909390453.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 354093909 - 216 = 354028373 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (354093919) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4539627 + ... + 4539704.

It is an arithmetic number, because the mean of its divisors is an integer number (63555324).

Almost surely, 2354093909 is an apocalyptic number.

354093909 is a gapful number since it is divisible by the number (39) formed by its first and last digit.

It is an amenable number.

354093909 is a deficient number, since it is larger than the sum of its proper divisors (154348683).

354093909 is a wasteful number, since it uses less digits than its factorization.

354093909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9079347.

The product of its (nonzero) digits is 131220, while the sum is 42.

The square root of 354093909 is about 18817.3831602590. The cubic root of 354093909 is about 707.4669433127.

The spelling of 354093909 in words is "three hundred fifty-four million, ninety-three thousand, nine hundred nine".

Divisors: 1 3 13 39 9079331 27237993 118031303 354093909