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145911384 = 23324347129
BaseRepresentation
bin10001011001001…
…10111001011000
3101011120001210100
420230212321120
5244323131014
622251215400
73421140423
oct1054467130
9334501710
10145911384
11753aa423
1240a47560
13242c9bc8
14155429ba
15cc23009
hex8b26e58

145911384 has 48 divisors (see below), whose sum is σ = 404375400. Its totient is φ = 47505024.

The previous prime is 145911373. The next prime is 145911397. The reversal of 145911384 is 483119541.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20469 + ... + 26660.

Almost surely, 2145911384 is an apocalyptic number.

It is an amenable number.

145911384 is an abundant number, since it is smaller than the sum of its proper divisors (258464016).

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

145911384 is a wasteful number, since it uses less digits than its factorization.

145911384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47184 (or 47177 counting only the distinct ones).

The product of its digits is 17280, while the sum is 36.

The square root of 145911384 is about 12079.3784608315. The cubic root of 145911384 is about 526.4571870718.

The spelling of 145911384 in words is "one hundred forty-five million, nine hundred eleven thousand, three hundred eighty-four".

Divisors: 1 2 3 4 6 8 9 12 18 24 36 43 72 86 129 172 258 344 387 516 774 1032 1548 3096 47129 94258 141387 188516 282774 377032 424161 565548 848322 1131096 1696644 2026547 3393288 4053094 6079641 8106188 12159282 16212376 18238923 24318564 36477846 48637128 72955692 145911384