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145655430 = 23526918049
BaseRepresentation
bin10001010111010…
…00011010000110
3101011002001200120
420223220122012
5244241433210
622241522410
73416023254
oct1053503206
9334061616
10145655430
1175245098
1240943406
132423a55b
14154b75d4
15cbc2270
hex8ae8686

145655430 has 32 divisors (see below), whose sum is σ = 350892000. Its totient is φ = 38694912.

The previous prime is 145655413. The next prime is 145655431. The reversal of 145655430 is 34556541.

It is a junction number, because it is equal to n+sod(n) for n = 145655391 and 145655400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145655431) 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, 955 + ... + 17094.

It is an arithmetic number, because the mean of its divisors is an integer number (10965375).

Almost surely, 2145655430 is an apocalyptic number.

145655430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

145655430 is an abundant number, since it is smaller than the sum of its proper divisors (205236570).

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

145655430 is a wasteful number, since it uses less digits than its factorization.

145655430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18328.

The product of its (nonzero) digits is 36000, while the sum is 33.

The square root of 145655430 is about 12068.7791428959. The cubic root of 145655430 is about 526.1491743429.

The spelling of 145655430 in words is "one hundred forty-five million, six hundred fifty-five thousand, four hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 269 538 807 1345 1614 2690 4035 8070 18049 36098 54147 90245 108294 180490 270735 541470 4855181 9710362 14565543 24275905 29131086 48551810 72827715 145655430