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121430300 = 2252372887
BaseRepresentation
bin1110011110011…
…10000100011100
322110111022001112
413033032010130
5222041232200
620014401152
73003066125
oct717160434
9273438045
10121430300
11625a9422
12348001b8
131c207c64
14121ad04c
15a9d9535
hex73ce11c

121430300 has 54 divisors (see below), whose sum is σ = 271123272. Its totient is φ = 47206080.

The previous prime is 121430299. The next prime is 121430333. The reversal of 121430300 is 3034121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 136457 + ... + 137343.

Almost surely, 2121430300 is an apocalyptic number.

121430300 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 121430300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (135561636).

121430300 is an abundant number, since it is smaller than the sum of its proper divisors (149692972).

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

121430300 is a wasteful number, since it uses less digits than its factorization.

121430300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 975 (or 931 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 121430300 is about 11019.5417327582. The cubic root of 121430300 is about 495.1943596175.

Adding to 121430300 its reverse (3034121), we get a palindrome (124464421).

The spelling of 121430300 in words is "one hundred twenty-one million, four hundred thirty thousand, three hundred".

Divisors: 1 2 4 5 10 20 25 37 50 74 100 148 185 370 740 887 925 1369 1774 1850 2738 3548 3700 4435 5476 6845 8870 13690 17740 22175 27380 32819 34225 44350 65638 68450 88700 131276 136900 164095 328190 656380 820475 1214303 1640950 2428606 3281900 4857212 6071515 12143030 24286060 30357575 60715150 121430300