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153312500 = 225611223
BaseRepresentation
bin10010010001101…
…01110011110100
3101200111002012202
421020311303310
5303222000000
623114004032
73541064135
oct1110656364
9350432182
10153312500
11795a4a50
1243416618
13259bb873
141650bc8c
15d6d5dd5
hex9235cf4

153312500 has 84 divisors (see below), whose sum is σ = 367495296. Its totient is φ = 55500000.

The previous prime is 153312493. The next prime is 153312521. The reversal of 153312500 is 5213351.

153312500 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 687389 + ... + 687611.

It is an arithmetic number, because the mean of its divisors is an integer number (4374944).

Almost surely, 2153312500 is an apocalyptic number.

153312500 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 153312500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (183747648).

153312500 is an abundant number, since it is smaller than the sum of its proper divisors (214182796).

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

153312500 is an equidigital number, since it uses as much as digits as its factorization.

153312500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268 (or 241 counting only the distinct ones).

The product of its (nonzero) digits is 450, while the sum is 20.

The square root of 153312500 is about 12381.9424970398. The cubic root of 153312500 is about 535.2120160066.

Adding to 153312500 its reverse (5213351), we get a palindrome (158525851).

The spelling of 153312500 in words is "one hundred fifty-three million, three hundred twelve thousand, five hundred".

Divisors: 1 2 4 5 10 11 20 22 25 44 50 55 100 110 125 220 223 250 275 446 500 550 625 892 1100 1115 1250 1375 2230 2453 2500 2750 3125 4460 4906 5500 5575 6250 6875 9812 11150 12265 12500 13750 15625 22300 24530 27500 27875 31250 34375 49060 55750 61325 62500 68750 111500 122650 137500 139375 171875 245300 278750 306625 343750 557500 613250 687500 696875 1226500 1393750 1533125 2787500 3066250 3484375 6132500 6968750 7665625 13937500 15331250 30662500 38328125 76656250 153312500