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121325250 = 2353831949
BaseRepresentation
bin1110011101101…
…00011011000010
322110021221221210
413032310123002
5222024402000
620012230550
73002150634
oct716643302
9273257853
10121325250
1162537502
123476b456
131c19c1b7
1412182a54
15a9b8350
hex73b46c2

121325250 has 64 divisors (see below), whose sum is σ = 306633600. Its totient is φ = 31947200.

The previous prime is 121325249. The next prime is 121325251. The reversal of 121325250 is 52523121.

It is an interprime number because it is at equal distance from previous prime (121325249) and next prime (121325251).

It is not an unprimeable number, because it can be changed into a prime (121325251) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 61276 + ... + 63224.

It is an arithmetic number, because the mean of its divisors is an integer number (4791150).

Almost surely, 2121325250 is an apocalyptic number.

121325250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 121325250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (153316800).

121325250 is an abundant number, since it is smaller than the sum of its proper divisors (185308350).

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

121325250 is a wasteful number, since it uses less digits than its factorization.

121325250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2052 (or 2042 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 121325250 is about 11014.7741692692. The cubic root of 121325250 is about 495.0515199921.

Adding to 121325250 its reverse (52523121), we get a palindrome (173848371).

The spelling of 121325250 in words is "one hundred twenty-one million, three hundred twenty-five thousand, two hundred fifty".

Divisors: 1 2 3 5 6 10 15 25 30 50 75 83 125 150 166 249 250 375 415 498 750 830 1245 1949 2075 2490 3898 4150 5847 6225 9745 10375 11694 12450 19490 20750 29235 31125 48725 58470 62250 97450 146175 161767 243625 292350 323534 485301 487250 730875 808835 970602 1461750 1617670 2426505 4044175 4853010 8088350 12132525 20220875 24265050 40441750 60662625 121325250