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145754540 = 2257287727
BaseRepresentation
bin10001011000000…
…00100110101100
3101011021002122022
420230000212230
5244303121130
622244005312
73416615231
oct1054004654
9334232568
10145754540
11753025a8
1240990838
13242736b9
1415501788
15cbe17e5
hex8b009ac

145754540 has 12 divisors (see below), whose sum is σ = 306084576. Its totient is φ = 58301808.

The previous prime is 145754537. The next prime is 145754573. The reversal of 145754540 is 45457541.

145754540 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1457545402 = 42488771861223200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 145754540.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3643844 + ... + 3643883.

It is an arithmetic number, because the mean of its divisors is an integer number (25507048).

Almost surely, 2145754540 is an apocalyptic number.

145754540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145754540 is an abundant number, since it is smaller than the sum of its proper divisors (160330036).

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

145754540 is a wasteful number, since it uses less digits than its factorization.

145754540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7287736 (or 7287734 counting only the distinct ones).

The product of its (nonzero) digits is 56000, while the sum is 35.

The square root of 145754540 is about 12072.8844937736. The cubic root of 145754540 is about 526.2684851976.

The spelling of 145754540 in words is "one hundred forty-five million, seven hundred fifty-four thousand, five hundred forty".

Divisors: 1 2 4 5 10 20 7287727 14575454 29150908 36438635 72877270 145754540