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345234057 = 3724354617
BaseRepresentation
bin10100100100111…
…101101010001001
3220001121201002120
4110210331222021
51201334442212
654131321453
711361304200
oct2444755211
9801551076
10345234057
1116796a503
1297750289
13566a7b0c
1433bca237
152049688c
hex1493da89

345234057 has 24 divisors (see below), whose sum is σ = 547927776. Its totient is φ = 192685248.

The previous prime is 345234053. The next prime is 345234083. The reversal of 345234057 is 750432543.

It is not a de Polignac number, because 345234057 - 22 = 345234053 is a prime.

It is a super-2 number, since 2×3452340572 = 238373108225358498, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (345234053) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20988 + ... + 33629.

It is an arithmetic number, because the mean of its divisors is an integer number (22830324).

Almost surely, 2345234057 is an apocalyptic number.

It is an amenable number.

345234057 is a deficient number, since it is larger than the sum of its proper divisors (202693719).

345234057 is a wasteful number, since it uses less digits than its factorization.

345234057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54677 (or 54670 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 33.

The square root of 345234057 is about 18580.4751553882. The cubic root of 345234057 is about 701.5164789963.

The spelling of 345234057 in words is "three hundred forty-five million, two hundred thirty-four thousand, fifty-seven".

Divisors: 1 3 7 21 43 49 129 147 301 903 2107 6321 54617 163851 382319 1146957 2348531 2676233 7045593 8028699 16439717 49319151 115078019 345234057