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145230342 = 23127190591
BaseRepresentation
bin10001010100000…
…00101000000110
3101010021110120120
420222000220012
5244134332332
622224442410
73412303035
oct1052005006
9333243516
10145230342
1174a84784
1240779406
132411bc1a
141540671c
15cb3b32c
hex8a80a06

145230342 has 16 divisors (see below), whose sum is σ = 292749312. Its totient is φ = 48028680.

The previous prime is 145230331. The next prime is 145230343. The reversal of 145230342 is 243032541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145230343) 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, 94534 + ... + 96057.

It is an arithmetic number, because the mean of its divisors is an integer number (18296832).

Almost surely, 2145230342 is an apocalyptic number.

145230342 is an abundant number, since it is smaller than the sum of its proper divisors (147518970).

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

145230342 is a wasteful number, since it uses less digits than its factorization.

145230342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190723.

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 145230342 is about 12051.1552143353. The cubic root of 145230342 is about 525.6368290232.

Adding to 145230342 its reverse (243032541), we get a palindrome (388262883).

The spelling of 145230342 in words is "one hundred forty-five million, two hundred thirty thousand, three hundred forty-two".

Divisors: 1 2 3 6 127 254 381 762 190591 381182 571773 1143546 24205057 48410114 72615171 145230342