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145133436 = 22371727779
BaseRepresentation
bin10001010011010…
…00111101111100
3101010002112122110
420221220331330
5244123232221
622222414020
73411420360
oct1051507574
9333075573
10145133436
1174a18998
1240731310
13240b6a96
14153bd2a0
15cb1c776
hex8a68f7c

145133436 has 24 divisors (see below), whose sum is σ = 387022720. Its totient is φ = 41466672.

The previous prime is 145133423. The next prime is 145133447. The reversal of 145133436 is 634331541.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 863806 + ... + 863973.

Almost surely, 2145133436 is an apocalyptic number.

It is an amenable number.

145133436 is an abundant number, since it is smaller than the sum of its proper divisors (241889284).

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

145133436 is a wasteful number, since it uses less digits than its factorization.

145133436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1727793 (or 1727791 counting only the distinct ones).

The product of its digits is 12960, while the sum is 30.

The square root of 145133436 is about 12047.1339330149. The cubic root of 145133436 is about 525.5198913469.

Adding to 145133436 its reverse (634331541), we get a palindrome (779464977).

The spelling of 145133436 in words is "one hundred forty-five million, one hundred thirty-three thousand, four hundred thirty-six".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 1727779 3455558 5183337 6911116 10366674 12094453 20733348 24188906 36283359 48377812 72566718 145133436