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121325213 = 283577743
BaseRepresentation
bin1110011101101…
…00011010011101
322110021221220102
413032310122131
5222024401323
620012230445
73002150552
oct716643235
9273257812
10121325213
1162537479
123476b425
131c19c189
1412182a29
15a9b8328
hex73b469d

121325213 has 8 divisors (see below), whose sum is σ = 122129088. Its totient is φ = 120524544.

The previous prime is 121325179. The next prime is 121325219. The reversal of 121325213 is 312523121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-121325213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121325219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 162920 + ... + 163662.

It is an arithmetic number, because the mean of its divisors is an integer number (15266136).

Almost surely, 2121325213 is an apocalyptic number.

It is an amenable number.

121325213 is a deficient number, since it is larger than the sum of its proper divisors (803875).

121325213 is an equidigital number, since it uses as much as digits as its factorization.

121325213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1603.

The product of its digits is 360, while the sum is 20.

The square root of 121325213 is about 11014.7724897067. The cubic root of 121325213 is about 495.0514696676.

Adding to 121325213 its reverse (312523121), we get a palindrome (433848334).

The spelling of 121325213 in words is "one hundred twenty-one million, three hundred twenty-five thousand, two hundred thirteen".

Divisors: 1 283 577 743 163291 210269 428711 121325213