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144551952 = 2431217
BaseRepresentation
bin10001001110110…
…11000000010000
3101002000000000000
420213123000100
5244001130302
622202130000
73403446156
oct1047330020
9332000000
10144551952
1174661026
12404b0900
1323c421cc
14152ab3d6
15ca5531c
hex89db010

144551952 has 130 divisors (see below), whose sum is σ = 444815838. Its totient is φ = 45349632.

The previous prime is 144551929. The next prime is 144551959. The reversal of 144551952 is 259155441.

144551952 is a `hidden beast` number, since 14 + 4 + 551 + 95 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 136048896 + 8503056 = 11664^2 + 2916^2 .

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

It is a nialpdrome in base 9.

It is not an unprimeable number, because it can be changed into a prime (144551959) by changing a digit.

It is a polite number, since it can be written in 25 ways as a sum of consecutive naturals, for example, 8503048 + ... + 8503064.

Almost surely, 2144551952 is an apocalyptic number.

144551952 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 144551952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (222407919).

144551952 is an abundant number, since it is smaller than the sum of its proper divisors (300263886).

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

144551952 is an frugal number, since it uses more digits than its factorization.

144551952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61 (or 22 counting only the distinct ones).

The product of its digits is 36000, while the sum is 36.

The square root of 144551952 is about 12022.9760043011. The cubic root of 144551952 is about 524.8171118070.

The spelling of 144551952 in words is "one hundred forty-four million, five hundred fifty-one thousand, nine hundred fifty-two".

Divisors: 1 2 3 4 6 8 9 12 16 17 18 24 27 34 36 48 51 54 68 72 81 102 108 136 144 153 162 204 216 243 272 306 324 408 432 459 486 612 648 729 816 918 972 1224 1296 1377 1458 1836 1944 2187 2448 2754 2916 3672 3888 4131 4374 5508 5832 6561 7344 8262 8748 11016 11664 12393 13122 16524 17496 19683 22032 24786 26244 33048 34992 37179 39366 49572 52488 59049 66096 74358 78732 99144 104976 111537 118098 148716 157464 177147 198288 223074 236196 297432 314928 334611 354294 446148 472392 531441 594864 669222 708588 892296 944784 1003833 1062882 1338444 1417176 1784592 2007666 2125764 2676888 2834352 3011499 4015332 4251528 5353776 6022998 8030664 8503056 9034497 12045996 16061328 18068994 24091992 36137988 48183984 72275976 144551952