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234215442 = 23315312833
BaseRepresentation
bin11011111010111…
…01100000010010
3121022201101012000
431331131200102
5434424343232
635124014430
75542540566
oct1575354022
9538641160
10234215442
1111023258a
1266531416
13396a6c26
142316b6a6
151586727c
hexdf5d812

234215442 has 32 divisors (see below), whose sum is σ = 521002560. Its totient is φ = 77993280.

The previous prime is 234215437. The next prime is 234215461. The reversal of 234215442 is 244512432.

234215442 is a `hidden beast` number, since 2 + 3 + 4 + 215 + 442 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81258 + ... + 84090.

It is an arithmetic number, because the mean of its divisors is an integer number (16281330).

Almost surely, 2234215442 is an apocalyptic number.

234215442 is an abundant number, since it is smaller than the sum of its proper divisors (286787118).

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

234215442 is a wasteful number, since it uses less digits than its factorization.

234215442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4375 (or 4369 counting only the distinct ones).

The product of its digits is 7680, while the sum is 27.

The square root of 234215442 is about 15304.0988627230. The cubic root of 234215442 is about 616.4130743349.

Adding to 234215442 its reverse (244512432), we get a palindrome (478727874).

The spelling of 234215442 in words is "two hundred thirty-four million, two hundred fifteen thousand, four hundred forty-two".

Divisors: 1 2 3 6 9 18 27 54 1531 2833 3062 4593 5666 8499 9186 13779 16998 25497 27558 41337 50994 76491 82674 152982 4337323 8674646 13011969 26023938 39035907 78071814 117107721 234215442