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345057040 = 24523187531
BaseRepresentation
bin10100100100010…
…010011100010000
3220001021201021101
4110210102130100
51201313311130
654123434144
711356636126
oct2444223420
9801251241
10345057040
11167859509
1297685954
1356645383
1433b81916
152045e1ca
hex14912710

345057040 has 40 divisors (see below), whose sum is σ = 837142848. Its totient is φ = 132021120.

The previous prime is 345057029. The next prime is 345057059. The reversal of 345057040 is 40750543.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91926 + ... + 95605.

Almost surely, 2345057040 is an apocalyptic number.

It is an amenable number.

345057040 is an abundant number, since it is smaller than the sum of its proper divisors (492085808).

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

345057040 is a wasteful number, since it uses less digits than its factorization.

345057040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187567 (or 187561 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 28.

The square root of 345057040 is about 18575.7110227307. The cubic root of 345057040 is about 701.3965588336.

The spelling of 345057040 in words is "three hundred forty-five million, fifty-seven thousand, forty".

Divisors: 1 2 4 5 8 10 16 20 23 40 46 80 92 115 184 230 368 460 920 1840 187531 375062 750124 937655 1500248 1875310 3000496 3750620 4313213 7501240 8626426 15002480 17252852 21566065 34505704 43132130 69011408 86264260 172528520 345057040