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144975312 = 2433335591
BaseRepresentation
bin10001010010000…
…10010111010000
3101002210111202000
420221002113100
5244103202222
622215154000
73410161356
oct1051022720
9332714660
10144975312
1174920109
1240675900
132405cb11
141537b7d6
15cada9ac
hex8a425d0

144975312 has 40 divisors (see below), whose sum is σ = 416134080. Its totient is φ = 48324960.

The previous prime is 144975253. The next prime is 144975323. The reversal of 144975312 is 213579441.

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 polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 167364 + ... + 168227.

It is an arithmetic number, because the mean of its divisors is an integer number (10403352).

Almost surely, 2144975312 is an apocalyptic number.

144975312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

144975312 is an abundant number, since it is smaller than the sum of its proper divisors (271158768).

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

144975312 is a wasteful number, since it uses less digits than its factorization.

144975312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335608 (or 335596 counting only the distinct ones).

The product of its digits is 30240, while the sum is 36.

The square root of 144975312 is about 12040.5694217508. The cubic root of 144975312 is about 525.3289693323.

The spelling of 144975312 in words is "one hundred forty-four million, nine hundred seventy-five thousand, three hundred twelve".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 27 36 48 54 72 108 144 216 432 335591 671182 1006773 1342364 2013546 2684728 3020319 4027092 5369456 6040638 8054184 9060957 12081276 16108368 18121914 24162552 36243828 48325104 72487656 144975312