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234140842 = 21383108499
BaseRepresentation
bin11011111010010…
…11010010101010
3121022120120212001
431331023102222
5434420001332
635122241214
75542110235
oct1575132252
9538516761
10234140842
11110191531
12664b620a
133967bca0
142314c41c
15158500e7
hexdf4b4aa

234140842 has 16 divisors (see below), whose sum is σ = 382788000. Its totient is φ = 106762032.

The previous prime is 234140839. The next prime is 234140843. The reversal of 234140842 is 248041432.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 234140842.

It is not an unprimeable number, because it can be changed into a prime (234140843) 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, 52092 + ... + 56407.

It is an arithmetic number, because the mean of its divisors is an integer number (23924250).

Almost surely, 2234140842 is an apocalyptic number.

234140842 is a deficient number, since it is larger than the sum of its proper divisors (148647158).

234140842 is a wasteful number, since it uses less digits than its factorization.

234140842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108597.

The product of its (nonzero) digits is 6144, while the sum is 28.

The square root of 234140842 is about 15301.6614130623. The cubic root of 234140842 is about 616.3476227746.

The spelling of 234140842 in words is "two hundred thirty-four million, one hundred forty thousand, eight hundred forty-two".

Divisors: 1 2 13 26 83 166 1079 2158 108499 216998 1410487 2820974 9005417 18010834 117070421 234140842