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121331202 = 2379255973
BaseRepresentation
bin1110011101101…
…01111000000010
322110022021010020
413032311320002
5222030044302
620012314310
73002204166
oct716657002
9273267106
10121331202
1162540a23
1234772996
131c1a1b15
1412184ca6
15a9b9ebc
hex73b5e02

121331202 has 16 divisors (see below), whose sum is σ = 245735040. Its totient is φ = 39931632.

The previous prime is 121331191. The next prime is 121331213. The reversal of 121331202 is 202133121.

It is an interprime number because it is at equal distance from previous prime (121331191) and next prime (121331213).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 127513 + ... + 128460.

It is an arithmetic number, because the mean of its divisors is an integer number (15358440).

Almost surely, 2121331202 is an apocalyptic number.

121331202 is an abundant number, since it is smaller than the sum of its proper divisors (124403838).

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

121331202 is a wasteful number, since it uses less digits than its factorization.

121331202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256057.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 121331202 is about 11015.0443485262. The cubic root of 121331202 is about 495.0596153074.

Adding to 121331202 its reverse (202133121), we get a palindrome (323464323).

The spelling of 121331202 in words is "one hundred twenty-one million, three hundred thirty-one thousand, two hundred two".

Divisors: 1 2 3 6 79 158 237 474 255973 511946 767919 1535838 20221867 40443734 60665601 121331202