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145115023342 = 272557511671
BaseRepresentation
bin1000011100100110000…
…1111000011111101110
3111212120022111222200011
42013021201320133232
54334143421221332
6150355342323434
713325041226542
oct2071141703756
9455508458604
10145115023342
11565a7713963
122415a88957a
13108b84c4523
147048ab1a22
153b94ce8e47
hex21c98787ee

145115023342 has 4 divisors (see below), whose sum is σ = 217672535016. Its totient is φ = 72557511670.

The previous prime is 145115023337. The next prime is 145115023351. The reversal of 145115023342 is 243320511541.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 243320511541 = 1831132889411.

It is a super-3 number, since 3×1451150233423 (a number of 34 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36278755834 + ... + 36278755837.

It is an arithmetic number, because the mean of its divisors is an integer number (54418133754).

Almost surely, 2145115023342 is an apocalyptic number.

145115023342 is a deficient number, since it is larger than the sum of its proper divisors (72557511674).

145115023342 is an equidigital number, since it uses as much as digits as its factorization.

145115023342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72557511673.

The product of its (nonzero) digits is 14400, while the sum is 31.

Adding to 145115023342 its reverse (243320511541), we get a palindrome (388435534883).

The spelling of 145115023342 in words is "one hundred forty-five billion, one hundred fifteen million, twenty-three thousand, three hundred forty-two".

Divisors: 1 2 72557511671 145115023342