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12150900 = 22325223587
BaseRepresentation
bin101110010110…
…100001110100
3211212022220100
4232112201310
511102312100
61112234100
7205165236
oct56264164
924768810
1012150900
11694a173
12409b930
1326958a8
141884256
151100400
hexb96874

12150900 has 108 divisors (see below), whose sum is σ = 39809952. Its totient is φ = 3094080.

The previous prime is 12150889. The next prime is 12150907. The reversal of 12150900 is 905121.

12150900 = 93 + 103 + ... + 833.

12150900 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 (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12150907) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 20407 + ... + 20993.

Almost surely, 212150900 is an apocalyptic number.

12150900 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 12150900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19904976).

12150900 is an abundant number, since it is smaller than the sum of its proper divisors (27659052).

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

12150900 is a wasteful number, since it uses less digits than its factorization.

12150900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 630 (or 620 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 18.

The square root of 12150900 is about 3485.8141086409. The cubic root of 12150900 is about 229.8985059441.

The spelling of 12150900 in words is "twelve million, one hundred fifty thousand, nine hundred".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 23 25 30 36 45 46 50 60 69 75 90 92 100 115 138 150 180 207 225 230 276 300 345 414 450 460 575 587 690 828 900 1035 1150 1174 1380 1725 1761 2070 2300 2348 2935 3450 3522 4140 5175 5283 5870 6900 7044 8805 10350 10566 11740 13501 14675 17610 20700 21132 26415 27002 29350 35220 40503 44025 52830 54004 58700 67505 81006 88050 105660 121509 132075 135010 162012 176100 202515 243018 264150 270020 337525 405030 486036 528300 607545 675050 810060 1012575 1215090 1350100 2025150 2430180 3037725 4050300 6075450 12150900