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152504320 = 211553281
BaseRepresentation
bin10010001011100…
…00100000000000
3101121222000121011
421011300200000
5303020114240
623044410304
73531160003
oct1105604000
9347860534
10152504320
11790a2831
12430a6994
1325797a57
141637b53a
15d5c66ea
hex9170800

152504320 has 96 divisors (see below), whose sum is σ = 374151960. Its totient is φ = 59637760.

The previous prime is 152504293. The next prime is 152504327. The reversal of 152504320 is 23405251.

It can be written as a sum of positive squares in 4 ways, for example, as 142468096 + 10036224 = 11936^2 + 3168^2 .

It is a junction number, because it is equal to n+sod(n) for n = 152504291 and 152504300.

It is not an unprimeable number, because it can be changed into a prime (152504327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 542580 + ... + 542860.

Almost surely, 2152504320 is an apocalyptic number.

152504320 is a gapful number since it is divisible by the number (10) 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 152504320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (187075980).

152504320 is an abundant number, since it is smaller than the sum of its proper divisors (221647640).

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

152504320 is an equidigital number, since it uses as much as digits as its factorization.

152504320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 361 (or 341 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 152504320 is about 12349.2639456771. The cubic root of 152504320 is about 534.2699098885.

Adding to 152504320 its reverse (23405251), we get a palindrome (175909571).

The spelling of 152504320 in words is "one hundred fifty-two million, five hundred four thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 32 40 53 64 80 106 128 160 212 256 265 281 320 424 512 530 562 640 848 1024 1060 1124 1280 1405 1696 2048 2120 2248 2560 2810 3392 4240 4496 5120 5620 6784 8480 8992 10240 11240 13568 14893 16960 17984 22480 27136 29786 33920 35968 44960 54272 59572 67840 71936 74465 89920 108544 119144 135680 143872 148930 179840 238288 271360 287744 297860 359680 476576 542720 575488 595720 719360 953152 1191440 1438720 1906304 2382880 2877440 3812608 4765760 7625216 9531520 15250432 19063040 30500864 38126080 76252160 152504320