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141830238 = 23113176779
BaseRepresentation
bin10000111010000…
…10100001011110
3100212212201111210
420131002201132
5242302031423
622023525250
73341352144
oct1035024136
9325781453
10141830238
1173072180
123b5b9826
13234cb424
1414b9d594
15c6b8b93
hex874285e

141830238 has 32 divisors (see below), whose sum is σ = 310469760. Its totient is φ = 42836960.

The previous prime is 141830233. The next prime is 141830251. The reversal of 141830238 is 832038141.

It is a super-2 number, since 2×1418302382 = 40231632822273288, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (141830233) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17533 + ... + 24311.

It is an arithmetic number, because the mean of its divisors is an integer number (9702180).

Almost surely, 2141830238 is an apocalyptic number.

141830238 is an abundant number, since it is smaller than the sum of its proper divisors (168639522).

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

141830238 is a wasteful number, since it uses less digits than its factorization.

141830238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7112.

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 141830238 is about 11909.2501023364. The cubic root of 141830238 is about 521.5023589258.

Adding to 141830238 its reverse (832038141), we get a palindrome (973868379).

The spelling of 141830238 in words is "one hundred forty-one million, eight hundred thirty thousand, two hundred thirty-eight".

Divisors: 1 2 3 6 11 22 33 66 317 634 951 1902 3487 6779 6974 10461 13558 20337 20922 40674 74569 149138 223707 447414 2148943 4297886 6446829 12893658 23638373 47276746 70915119 141830238