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234015345 = 3353315237
BaseRepresentation
bin11011111001011…
…00101001110001
3121022100012201000
431330230221301
5434401442340
635115432213
75541045324
oct1574545161
9538305630
10234015345
11110106213
1266455669
1339636b25
14231187bb
1515827d30
hexdf2ca71

234015345 has 32 divisors (see below), whose sum is σ = 417363840. Its totient is φ = 124407360.

The previous prime is 234015323. The next prime is 234015347. The reversal of 234015345 is 543510432.

It is not a de Polignac number, because 234015345 - 26 = 234015281 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (234015347) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 42067 + ... + 47303.

It is an arithmetic number, because the mean of its divisors is an integer number (13042620).

Almost surely, 2234015345 is an apocalyptic number.

It is an amenable number.

234015345 is a deficient number, since it is larger than the sum of its proper divisors (183348495).

234015345 is a wasteful number, since it uses less digits than its factorization.

234015345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5582 (or 5576 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 234015345 is about 15297.5600995714. The cubic root of 234015345 is about 616.2374845054.

Adding to 234015345 its reverse (543510432), we get a palindrome (777525777).

The spelling of 234015345 in words is "two hundred thirty-four million, fifteen thousand, three hundred forty-five".

Divisors: 1 3 5 9 15 27 45 135 331 993 1655 2979 4965 5237 8937 14895 15711 26185 44685 47133 78555 141399 235665 706995 1733447 5200341 8667235 15601023 26001705 46803069 78005115 234015345