Search a number
-
+
145032412 = 22747191577
BaseRepresentation
bin10001010010100…
…00010011011100
3101002220102001211
420221100103130
5244112014122
622220314204
73410520010
oct1051202334
9332812054
10145032412
1174959aa8
12406a2964
132407cac5
1415394540
15caec877
hex8a504dc

145032412 has 48 divisors (see below), whose sum is σ = 298303488. Its totient is φ = 60410880.

The previous prime is 145032409. The next prime is 145032413. The reversal of 145032412 is 214230541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145032413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 251068 + ... + 251644.

It is an arithmetic number, because the mean of its divisors is an integer number (6214656).

Almost surely, 2145032412 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 145032412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (149151744).

145032412 is an abundant number, since it is smaller than the sum of its proper divisors (153271076).

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

145032412 is a wasteful number, since it uses less digits than its factorization.

145032412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 826 (or 824 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 145032412 is about 12042.9403386382. The cubic root of 145032412 is about 525.3979289974.

Adding to 145032412 its reverse (214230541), we get a palindrome (359262953).

The spelling of 145032412 in words is "one hundred forty-five million, thirty-two thousand, four hundred twelve".

Divisors: 1 2 4 7 14 28 47 94 188 191 329 382 577 658 764 1154 1316 1337 2308 2674 4039 5348 8078 8977 16156 17954 27119 35908 54238 62839 108476 110207 125678 189833 220414 251356 379666 440828 759332 771449 1542898 3085796 5179729 10359458 20718916 36258103 72516206 145032412