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153105408 = 2103237449
BaseRepresentation
bin10010010000000…
…11010000000000
3101200002120010200
421020003100000
5303143333113
623105325200
73536242311
oct1110032000
9350076120
10153105408
11794733a5
1243336800
1325948521
1416496608
15d694873
hex9203400

153105408 has 132 divisors (see below), whose sum is σ = 455048100. Its totient is φ = 49545216.

The previous prime is 153105389. The next prime is 153105419. The reversal of 153105408 is 804501351.

153105408 is a `hidden beast` number, since 153 + 105 + 408 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 117679104 + 35426304 = 10848^2 + 5952^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 340768 + ... + 341216.

Almost surely, 2153105408 is an apocalyptic number.

153105408 is a gapful number since it is divisible by the number (18) 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 153105408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (227524050).

153105408 is an abundant number, since it is smaller than the sum of its proper divisors (301942692).

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

153105408 is a wasteful number, since it uses less digits than its factorization.

153105408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 512 (or 491 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The square root of 153105408 is about 12373.5770090948. The cubic root of 153105408 is about 534.9709222267.

Adding to 153105408 its reverse (804501351), we get a palindrome (957606759).

The spelling of 153105408 in words is "one hundred fifty-three million, one hundred five thousand, four hundred eight".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 32 36 37 48 64 72 74 96 111 128 144 148 192 222 256 288 296 333 384 444 449 512 576 592 666 768 888 898 1024 1152 1184 1332 1347 1536 1776 1796 2304 2368 2664 2694 3072 3552 3592 4041 4608 4736 5328 5388 7104 7184 8082 9216 9472 10656 10776 14208 14368 16164 16613 18944 21312 21552 28416 28736 32328 33226 37888 42624 43104 49839 56832 57472 64656 66452 85248 86208 99678 113664 114944 129312 132904 149517 170496 172416 199356 229888 258624 265808 299034 340992 344832 398712 459776 517248 531616 598068 689664 797424 1034496 1063232 1196136 1379328 1594848 2068992 2126464 2392272 3189696 4137984 4252928 4784544 6379392 8505856 9569088 12758784 17011712 19138176 25517568 38276352 51035136 76552704 153105408